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Message-ID: <20120724165247.GA18401@oc1711230544.ibm.com> Date: Tue, 24 Jul 2012 13:52:47 -0300 From: Thadeu Lima de Souza Cascardo <cascardo@...ux.vnet.ibm.com> To: nicolas prochazka <prochazka.nicolas@...il.com> Cc: Dave Jones <davej@...hat.com>, linux-kernel <linux-kernel@...r.kernel.org>, David Howells <dhowells@...hat.com>, Bobby Powers <bobbypowers@...il.com> Subject: Re: oops in kernel ( 3.4.x -> 3.5rc ) On Mon, Jul 23, 2012 at 11:15:09PM +0200, nicolas prochazka wrote: > Hello, > I 'm trying differents versions with differents results > > - commit f044db4cb4bf16893812d35b5fbeaaf3e30c9215 : bug is not reproductible > - 3.5rc7 : bug is reproductible (cf new dump ) > - master branch : bug is reproductible > > > > Regards, > Nicolas Prochazka > > Hi, Nicolas. Can you try a bisect? I am also copying David Howells and Bobby Powers, even though their set of patches don't seem to be the culprit. Regards. Cascardo. > Jul 23 21:10:05 positronic18696 BUG: unable to handle kernel paging > request at 000000010000002f > Jul 23 21:10:05 positronic18696 IP: [<ffffffff81156900>] dup_fd+0x160/0x2e0 > Jul 23 21:10:05 positronic18696 PGD 6627ea067 PUD 0 > Jul 23 21:10:05 positronic18696 Oops: 0002 [#1] SMP > Jul 23 21:10:05 positronic18696 CPU 1 > Jul 23 21:10:05 positronic18696 Modules linked in: kvm_intel kvm > Jul 23 21:10:05 positronic18696 > Jul 23 21:10:05 positronic18696 Pid: 17596, comm: queue.sh Not tainted > 3.5.0-rc7-dirty #6 Dell Inc. PowerEdge M600/0MY736 > Jul 23 21:10:05 positronic18696 RIP: 0010:[<ffffffff81156900>] > [<ffffffff81156900>] dup_fd+0x160/0x2e0 > Jul 23 21:10:05 positronic18696 RSP: 0018:ffff880669ebdd90 EFLAGS: 00010206 > Jul 23 21:10:05 positronic18696 RAX: 0000000000000038 RBX: > ffff8807ed95eec0 RCX: 0000000000000007 > Jul 23 21:10:05 positronic18696 RDX: 00000000ffffffff RSI: > 0000000000000800 RDI: ffff8805a4d01d40 > Jul 23 21:10:05 positronic18696 RBP: ffff880669ebddf0 R08: > 0000000000000020 R09: ffffffff81156694 > Jul 23 21:10:05 positronic18696 R10: 0000000000000001 R11: > 0000000000000000 R12: ffff8807ecf25000 > Jul 23 21:10:05 positronic18696 R13: ffff8805a4d01d80 R14: > 0000000000000100 R15: ffff8807d3a61800 > Jul 23 21:10:05 positronic18696 FS: 00007f1a8e719700(0000) > GS:ffff88083fc40000(0000) knlGS:0000000000000000 > Jul 23 21:10:05 positronic18696 CS: 0010 DS: 0000 ES: 0000 CR0: > 000000008005003b > Jul 23 21:10:05 positronic18696 CR2: 000000010000002f CR3: > 000000066ef90000 CR4: 00000000000027e0 > Jul 23 21:10:05 positronic18696 DR0: 0000000000000001 DR1: > 0000000000000002 DR2: 0000000000000001 > Jul 23 21:10:05 positronic18696 DR3: 000000000000000a DR6: > 00000000ffff0ff0 DR7: 0000000000000400 > Jul 23 21:10:05 positronic18696 Process queue.sh (pid: 17596, > threadinfo ffff880669ebc000, task ffff8806625ab000) > Jul 23 21:10:05 positronic18696 Stack: > Jul 23 21:10:05 positronic18696 ffff880669ebdda0 000000018102db49 > 0000000000000020 ffff8806627ee8c0 > Jul 23 21:10:05 positronic18696 ffff8807eefc1608 ffff8807eefc1680 > 00007f1a8e7199d0 ffff8807bf41d000 > Jul 23 21:10:05 positronic18696 0000000000000000 0000000001200011 > 00007f1a8e7199d0 0000000000000000 > Jul 23 21:10:05 positronic18696 Call Trace: > Jul 23 21:10:05 positronic18696 [<ffffffff81040441>] copy_process+0x931/0x13c0 > Jul 23 21:10:05 positronic18696 [<ffffffff81041024>] do_fork+0x54/0x360 > Jul 23 21:10:05 positronic18696 [<ffffffff81ac3b7e>] ? _raw_spin_lock+0xe/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff810559e7>] ? > __set_task_blocked+0x37/0x80 > Jul 23 21:10:05 positronic18696 [<ffffffff81055a83>] ? > __set_current_blocked+0x53/0x70 > Jul 23 21:10:05 positronic18696 [<ffffffff8100c098>] sys_clone+0x28/0x30 > Jul 23 21:10:05 positronic18696 [<ffffffff81ac4bb3>] stub_clone+0x13/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff81ac4929>] ? > system_call_fastpath+0x16/0x1b > Jul 23 21:10:05 positronic18696 Code: 8b 45 b0 49 8b 7d 10 48 8b 71 10 > 4c 89 c2 e8 08 82 23 00 45 85 f6 74 54 41 8d 46 ff 31 c9 48 8d 34 c5 > 08 00 00 00 31 c0 eb 15 90 <f0> 48 ff 42 30 49 89 14 04 ff c1 48 83 c0 > 08 48 39 f0 74 24 49 > Jul 23 21:10:05 positronic18696 RIP [<ffffffff81156900>] dup_fd+0x160/0x2e0 > Jul 23 21:10:05 positronic18696 RSP <ffff880669ebdd90> > Jul 23 21:10:05 positronic18696 CR2: 000000010000002f > Jul 23 21:10:05 positronic18696 ---[ end trace ccf5b66c39d92756 ]--- > Jul 23 21:10:05 positronic18696 device vmtap35 left promiscuous mode > Jul 23 21:10:05 positronic18696 device vmEtap35 left promiscuous mode > Jul 23 21:10:05 positronic18696 device vmtap36 left promiscuous mode > Jul 23 21:10:05 positronic18696 device vmEtap36 left promiscuous mode > Jul 23 21:10:05 positronic18696 device vmtap37 left promiscuous mode > Jul 23 21:10:05 positronic18696 device vmEtap37 left promiscuous mode > Jul 23 21:10:05 positronic18696 device vmtap38 left promiscuous mode > Jul 23 21:10:05 positronic18696 device vmEtap38 left promiscuous mode > Jul 23 21:10:05 positronic18696 BUG: unable to handle kernel paging > request at 000000010000003b > Jul 23 21:10:05 positronic18696 IP: [<ffffffff8119f684>] > tid_fd_revalidate+0x84/0x1a0 > Jul 23 21:10:05 positronic18696 PGD 598c9e067 PUD 0 > Jul 23 21:10:05 positronic18696 Oops: 0000 [#2] SMP > Jul 23 21:10:05 positronic18696 CPU 0 > Jul 23 21:10:05 positronic18696 Modules linked in: kvm_intel kvm > Jul 23 21:10:05 positronic18696 > Jul 23 21:10:05 positronic18696 Pid: 21815, comm: netstat Tainted: G > D 3.5.0-rc7-dirty #6 Dell Inc. PowerEdge M600/0MY736 > Jul 23 21:10:05 positronic18696 RIP: 0010:[<ffffffff8119f684>] > [<ffffffff8119f684>] tid_fd_revalidate+0x84/0x1a0 > Jul 23 21:10:05 positronic18696 RSP: 0018:ffff88053f965d78 EFLAGS: 00010206 > Jul 23 21:10:05 positronic18696 RAX: ffff8807ee3bf700 RBX: > ffff8807ed1d9118 RCX: 000000000000007e > Jul 23 21:10:05 positronic18696 RDX: 00000000ffffffff RSI: > 0000000000000000 RDI: ffff8807ee3bf700 > Jul 23 21:10:05 positronic18696 RBP: ffff88053f965d98 R08: > ffff88083fc16a10 R09: ffffffff8119bfe0 > Jul 23 21:10:05 positronic18696 R10: 0000000000000000 R11: > 0000000000000206 R12: ffff8807d8afaa80 > Jul 23 21:10:05 positronic18696 R13: ffff8808139d7000 R14: > ffff8807ed98d038 R15: ffff88053f965e08 > Jul 23 21:10:05 positronic18696 FS: 00007faee78b5700(0000) > GS:ffff88083fc00000(0000) knlGS:0000000000000000 > Jul 23 21:10:05 positronic18696 CS: 0010 DS: 0000 ES: 0000 CR0: > 0000000080050033 > Jul 23 21:10:05 positronic18696 CR2: 000000010000003b CR3: > 00000007e2eb5000 CR4: 00000000000007e0 > Jul 23 21:10:05 positronic18696 DR0: 0000000000000001 DR1: > 0000000000000002 DR2: 0000000000000001 > Jul 23 21:10:05 positronic18696 DR3: 000000000000000a DR6: > 00000000ffff0ff0 DR7: 0000000000000400 > Jul 23 21:10:05 positronic18696 Process netstat (pid: 21815, > threadinfo ffff88053f964000, task ffff8807c6207000) > Jul 23 21:10:05 positronic18696 Stack: > Jul 23 21:10:05 positronic18696 ffff8807d8afaa80 0000000000000007 > ffff8807ed1d9118 ffff8807ee63ab40 > Jul 23 21:10:05 positronic18696 ffff88053f965dc8 ffffffff8119f8b0 > ffffffffff0a0210 0000000000000001 > Jul 23 21:10:05 positronic18696 ffff88053f965e98 ffff8807eca70200 > ffff88053f965e48 ffffffff811a0876 > Jul 23 21:10:05 positronic18696 Call Trace: > Jul 23 21:10:05 positronic18696 [<ffffffff8119f8b0>] > proc_fd_instantiate+0x80/0xa0 > Jul 23 21:10:05 positronic18696 [<ffffffff811a0876>] proc_fill_cache+0x126/0x150 > Jul 23 21:10:05 positronic18696 [<ffffffff8119f830>] ? > proc_fdinfo_instantiate+0x90/0x90 > Jul 23 21:10:05 positronic18696 [<ffffffff8114cc50>] ? filldir64+0xe0/0xe0 > Jul 23 21:10:05 positronic18696 [<ffffffff811a0ba6>] > proc_readfd_common+0xf6/0x1c0 > Jul 23 21:10:05 positronic18696 [<ffffffff8119f830>] ? > proc_fdinfo_instantiate+0x90/0x90 > Jul 23 21:10:05 positronic18696 [<ffffffff8114cc50>] ? filldir64+0xe0/0xe0 > Jul 23 21:10:05 positronic18696 [<ffffffff811a0ca5>] proc_readfd+0x15/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff8114ce70>] vfs_readdir+0xa0/0xc0 > Jul 23 21:10:05 positronic18696 [<ffffffff8114cc50>] ? filldir64+0xe0/0xe0 > Jul 23 21:10:05 positronic18696 [<ffffffff8114d01d>] sys_getdents+0x8d/0x100 > Jul 23 21:10:05 positronic18696 [<ffffffff81ac4929>] > system_call_fastpath+0x16/0x1b > Jul 23 21:10:05 positronic18696 Code: b8 00 00 00 48 8b 50 08 44 3b 32 > 0f 83 9e 00 00 00 45 89 f6 49 c1 e6 03 4c 03 72 08 49 8b 16 48 85 d2 > 0f 84 87 00 00 00 48 89 c7 <44> 8b 62 3c e8 b3 67 ea ff 4c 89 ef e8 0b > e0 ff ff 85 c0 0f 84 > Jul 23 21:10:05 positronic18696 RIP [<ffffffff8119f684>] > tid_fd_revalidate+0x84/0x1a0 > Jul 23 21:10:05 positronic18696 RSP <ffff88053f965d78> > Jul 23 21:10:05 positronic18696 CR2: 000000010000003b > Jul 23 21:10:05 positronic18696 ---[ end trace ccf5b66c39d92757 ]--- > Jul 23 21:10:05 positronic18696 BUG: unable to handle kernel paging > request at 000000010000002f > Jul 23 21:10:05 positronic18696 IP: [<ffffffff81156900>] dup_fd+0x160/0x2e0 > Jul 23 21:10:05 positronic18696 PGD 7ee96c067 PUD 0 > Jul 23 21:10:05 positronic18696 Oops: 0002 [#3] SMP > Jul 23 21:10:05 positronic18696 CPU 3 > Jul 23 21:10:05 positronic18696 Modules linked in: kvm_intel kvm > Jul 23 21:10:05 positronic18696 > Jul 23 21:10:05 positronic18696 Pid: 7882, comm: bash Tainted: G > D 3.5.0-rc7-dirty #6 Dell Inc. PowerEdge M600/0MY736 > Jul 23 21:10:05 positronic18696 RIP: 0010:[<ffffffff81156900>] > [<ffffffff81156900>] dup_fd+0x160/0x2e0 > Jul 23 21:10:05 positronic18696 RSP: 0018:ffff8807ec9e1d90 EFLAGS: 00010206 > Jul 23 21:10:05 positronic18696 RAX: 0000000000000038 RBX: > ffff8807ed42de40 RCX: 0000000000000007 > Jul 23 21:10:05 positronic18696 RDX: 00000000ffffffff RSI: > 0000000000000800 RDI: ffff8807ef0de080 > Jul 23 21:10:05 positronic18696 RBP: ffff8807ec9e1df0 R08: > 0000000000000020 R09: ffffffff81156694 > Jul 23 21:10:05 positronic18696 R10: 00000000fffffffb R11: > 0000000000000000 R12: ffff8807eb8ec000 > Jul 23 21:10:05 positronic18696 R13: ffff8807ef0de440 R14: > 0000000000000100 R15: ffff8807ed98d000 > Jul 23 21:10:05 positronic18696 FS: 00007f7d50f02700(0000) > GS:ffff88083fcc0000(0000) knlGS:0000000000000000 > Jul 23 21:10:05 positronic18696 CS: 0010 DS: 0000 ES: 0000 CR0: > 000000008005003b > Jul 23 21:10:05 positronic18696 CR2: 000000010000002f CR3: > 00000007ed669000 CR4: 00000000000007e0 > Jul 23 21:10:05 positronic18696 DR0: 0000000000000001 DR1: > 0000000000000002 DR2: 0000000000000001 > Jul 23 21:10:05 positronic18696 DR3: 000000000000000a DR6: > 00000000ffff0ff0 DR7: 0000000000000400 > Jul 23 21:10:05 positronic18696 Process bash (pid: 7882, threadinfo > ffff8807ec9e0000, task ffff8808139d7000) > Jul 23 21:10:05 positronic18696 Stack: > Jul 23 21:10:05 positronic18696 ffff8807ec9e1da0 000000018102db49 > 0000000000000020 ffff8807ef0de980 > Jul 23 21:10:05 positronic18696 ffff8807ee3bf708 ffff8807ee3bf780 > 00007f7d50f029d0 ffff8806627e6000 > Jul 23 21:10:05 positronic18696 0000000000000000 0000000001200011 > 00007f7d50f029d0 0000000000000000 > Jul 23 21:10:05 positronic18696 Call Trace: > Jul 23 21:10:05 positronic18696 [<ffffffff81040441>] copy_process+0x931/0x13c0 > Jul 23 21:10:05 positronic18696 [<ffffffff8112902f>] ? > kmem_cache_alloc+0xaf/0x110 > Jul 23 21:10:05 positronic18696 [<ffffffff81041024>] do_fork+0x54/0x360 > Jul 23 21:10:05 positronic18696 [<ffffffff81ac3b7e>] ? _raw_spin_lock+0xe/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff81139247>] ? fd_install+0x67/0x90 > Jul 23 21:10:05 positronic18696 [<ffffffff81144580>] ? do_pipe_flags+0xb0/0x100 > Jul 23 21:10:05 positronic18696 [<ffffffff8100c098>] sys_clone+0x28/0x30 > Jul 23 21:10:05 positronic18696 [<ffffffff81ac4bb3>] stub_clone+0x13/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff81ac4929>] ? > system_call_fastpath+0x16/0x1b > Jul 23 21:10:05 positronic18696 Code: 8b 45 b0 49 8b 7d 10 48 8b 71 10 > 4c 89 c2 e8 08 82 23 00 45 85 f6 74 54 41 8d 46 ff 31 c9 48 8d 34 c5 > 08 00 00 00 31 c0 eb 15 90 <f0> 48 ff 42 30 49 89 14 04 ff c1 48 83 c0 > 08 48 39 f0 74 24 49 > Jul 23 21:10:05 positronic18696 RIP [<ffffffff81156900>] dup_fd+0x160/0x2e0 > Jul 23 21:10:05 positronic18696 RSP <ffff8807ec9e1d90> > Jul 23 21:10:05 positronic18696 CR2: 000000010000002f > Jul 23 21:10:05 positronic18696 ---[ end trace ccf5b66c39d92758 ]--- > Jul 23 21:10:05 positronic18696 BUG: unable to handle kernel paging > request at 000000010000003b > Jul 23 21:10:05 positronic18696 IP: [<ffffffff8119f684>] > tid_fd_revalidate+0x84/0x1a0 > Jul 23 21:10:05 positronic18696 PGD 7ec990067 PUD 0 > Jul 23 21:10:05 positronic18696 Oops: 0000 [#4] SMP > Jul 23 21:10:05 positronic18696 CPU 3 > Jul 23 21:10:05 positronic18696 Modules linked in: kvm_intel kvm > Jul 23 21:10:05 positronic18696 > Jul 23 21:10:05 positronic18696 Pid: 22417, comm: netstat Tainted: G > D 3.5.0-rc7-dirty #6 Dell Inc. PowerEdge M600/0MY736 > Jul 23 21:10:05 positronic18696 RIP: 0010:[<ffffffff8119f684>] > [<ffffffff8119f684>] tid_fd_revalidate+0x84/0x1a0 > Jul 23 21:10:05 positronic18696 RSP: 0018:ffff88066ef4fcd8 EFLAGS: 00010206 > Jul 23 21:10:05 positronic18696 RAX: ffff8807ee3bf180 RBX: > ffff8807ed065f88 RCX: ffff8807ed051000 > Jul 23 21:10:05 positronic18696 RDX: 00000000ffffffff RSI: > 0000000000000000 RDI: ffff8807ee3bf180 > Jul 23 21:10:05 positronic18696 RBP: ffff88066ef4fcf8 R08: > ffff8807ed051038 R09: ffffffffffcaffc8 > Jul 23 21:10:05 positronic18696 R10: ffff88066ef4fc44 R11: > 0000000000000004 R12: ffff8807ed051000 > Jul 23 21:10:05 positronic18696 R13: ffff8807ee1ab000 R14: > ffff8807eb875038 R15: ffff880813b59c20 > Jul 23 21:10:05 positronic18696 FS: 00007f7200558700(0000) > GS:ffff88083fcc0000(0000) knlGS:0000000000000000 > Jul 23 21:10:05 positronic18696 CS: 0010 DS: 0000 ES: 0000 CR0: > 0000000080050033 > Jul 23 21:10:05 positronic18696 CR2: 000000010000003b CR3: > 00000007ec9fd000 CR4: 00000000000027e0 > Jul 23 21:10:05 positronic18696 DR0: 0000000000000001 DR1: > 0000000000000002 DR2: 0000000000000001 > Jul 23 21:10:05 positronic18696 DR3: 000000000000000a DR6: > 00000000ffff0ff0 DR7: 0000000000000400 > Jul 23 21:10:05 positronic18696 Process netstat (pid: 22417, > threadinfo ffff88066ef4e000, task ffff8807ecfa9000) > Jul 23 21:10:05 positronic18696 Stack: > Jul 23 21:10:05 positronic18696 ffff88066ef4fdb8 ffff88066ef4fe48 > ffff88066ef4fdc8 0000000000000001 > Jul 23 21:10:05 positronic18696 ffff88066ef4fd58 ffffffff811460dc > ffff880813b59c20 ffff8807ed051000 > Jul 23 21:10:05 positronic18696 0000000000000001 ffff8807ed0642a8 > 0000000000000040 ffff88066ef4fe48 > Jul 23 21:10:05 positronic18696 Call Trace: > Jul 23 21:10:05 positronic18696 [<ffffffff811460dc>] lookup_fast+0x1fc/0x2f0 > Jul 23 21:10:05 positronic18696 [<ffffffff81147d2d>] path_lookupat+0x12d/0x780 > Jul 23 21:10:05 positronic18696 [<ffffffff81150d94>] ? dynamic_dname+0x94/0xa0 > Jul 23 21:10:05 positronic18696 [<ffffffff811483b3>] do_path_lookup+0x33/0x80 > Jul 23 21:10:05 positronic18696 [<ffffffff811486a9>] > user_path_at_empty+0x59/0xb0 > Jul 23 21:10:05 positronic18696 [<ffffffff81145ad2>] ? path_put+0x22/0x30 > Jul 23 21:10:05 positronic18696 [<ffffffff81ac3b7e>] ? _raw_spin_lock+0xe/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff8106d29a>] ? lg_local_unlock+0x1a/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff81159264>] ? > mntput_no_expire+0x44/0x140 > Jul 23 21:10:05 positronic18696 [<ffffffff81159381>] ? mntput+0x21/0x40 > Jul 23 21:10:05 positronic18696 [<ffffffff8113facd>] sys_readlinkat+0x4d/0xc0 > Jul 23 21:10:05 positronic18696 [<ffffffff8113fb5b>] sys_readlink+0x1b/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff81ac4929>] > system_call_fastpath+0x16/0x1b > Jul 23 21:10:05 positronic18696 Code: b8 00 00 00 48 8b 50 08 44 3b 32 > 0f 83 9e 00 00 00 45 89 f6 49 c1 e6 03 4c 03 72 08 49 8b 16 48 85 d2 > 0f 84 87 00 00 00 48 89 c7 <44> 8b 62 3c e8 b3 67 ea ff 4c 89 ef e8 0b > e0 ff ff 85 c0 0f 84 > Jul 23 21:10:05 positronic18696 RIP [<ffffffff8119f684>] > tid_fd_revalidate+0x84/0x1a0 > Jul 23 21:10:05 positronic18696 RSP <ffff88066ef4fcd8> > Jul 23 21:10:05 positronic18696 CR2: 000000010000003b > Jul 23 21:10:05 positronic18696 ---[ end trace ccf5b66c39d92759 ]--- > Jul 23 21:10:05 positronic18696 device vmtap24 entered promiscuous mode > Jul 23 21:10:05 positronic18696 BUG: unable to handle kernel paging > request at 000000010000003b > Jul 23 21:10:05 positronic18696 IP: [<ffffffff8119f684>] > tid_fd_revalidate+0x84/0x1a0 > Jul 23 21:10:05 positronic18696 PGD 7ecea9067 PUD 0 > Jul 23 21:10:05 positronic18696 Oops: 0000 [#5] SMP > Jul 23 21:10:05 positronic18696 CPU 2 > Jul 23 21:10:05 positronic18696 Modules linked in: kvm_intel kvm > Jul 23 21:10:05 positronic18696 > Jul 23 21:10:05 positronic18696 Pid: 22487, comm: netstat Tainted: G > D 3.5.0-rc7-dirty #6 Dell Inc. PowerEdge M600/0MY736 > Jul 23 21:10:05 positronic18696 RIP: 0010:[<ffffffff8119f684>] > [<ffffffff8119f684>] tid_fd_revalidate+0x84/0x1a0 > Jul 23 21:10:05 positronic18696 RSP: 0018:ffff8807ecb4dcd8 EFLAGS: 00010206 > Jul 23 21:10:05 positronic18696 RAX: ffff8807ee3bf180 RBX: > ffff8807ed065f88 RCX: ffff8807ed051000 > Jul 23 21:10:05 positronic18696 RDX: 00000000ffffffff RSI: > 0000000000000000 RDI: ffff8807ee3bf180 > Jul 23 21:10:05 positronic18696 RBP: ffff8807ecb4dcf8 R08: > ffff8807ed051038 R09: ffffffffffcaffc8 > Jul 23 21:10:05 positronic18696 R10: ffff8807ecb4dc44 R11: > 0000000000000004 R12: ffff8807ed051000 > Jul 23 21:10:05 positronic18696 R13: ffff8807ee1ab000 R14: > ffff8807eb875038 R15: ffff880813b59c20 > Jul 23 21:10:05 positronic18696 FS: 00007f370dd20700(0000) > GS:ffff88083fc80000(0000) knlGS:0000000000000000 > Jul 23 21:10:05 positronic18696 CS: 0010 DS: 0000 ES: 0000 CR0: > 0000000080050033 > Jul 23 21:10:05 positronic18696 CR2: 000000010000003b CR3: > 0000000623f45000 CR4: 00000000000027e0 > Jul 23 21:10:05 positronic18696 DR0: 0000000000000001 DR1: > 0000000000000002 DR2: 0000000000000001 > Jul 23 21:10:05 positronic18696 DR3: 000000000000000a DR6: > 00000000ffff0ff0 DR7: 0000000000000400 > Jul 23 21:10:05 positronic18696 Process netstat (pid: 22487, > threadinfo ffff8807ecb4c000, task ffff8807d1b99000) > Jul 23 21:10:05 positronic18696 Stack: > Jul 23 21:10:05 positronic18696 ffff8807ecb4ddb8 ffff8807ecb4de48 > ffff8807ecb4ddc8 0000000000000001 > Jul 23 21:10:05 positronic18696 ffff8807ecb4dd58 ffffffff811460dc > ffff880813b59c20 ffff8807ed051000 > Jul 23 21:10:05 positronic18696 0000000000000001 ffff8807ed0642a8 > 0000000000000040 ffff8807ecb4de48 > Jul 23 21:10:05 positronic18696 Call Trace: > Jul 23 21:10:05 positronic18696 [<ffffffff811460dc>] lookup_fast+0x1fc/0x2f0 > Jul 23 21:10:05 positronic18696 [<ffffffff81147d2d>] path_lookupat+0x12d/0x780 > Jul 23 21:10:05 positronic18696 [<ffffffff81150d94>] ? dynamic_dname+0x94/0xa0 > Jul 23 21:10:05 positronic18696 [<ffffffff811483b3>] do_path_lookup+0x33/0x80 > Jul 23 21:10:05 positronic18696 [<ffffffff811486a9>] > user_path_at_empty+0x59/0xb0 > Jul 23 21:10:05 positronic18696 [<ffffffff81145ad2>] ? path_put+0x22/0x30 > Jul 23 21:10:05 positronic18696 [<ffffffff81ac3b7e>] ? _raw_spin_lock+0xe/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff8106d29a>] ? lg_local_unlock+0x1a/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff81159264>] ? > mntput_no_expire+0x44/0x140 > Jul 23 21:10:05 positronic18696 [<ffffffff81159381>] ? mntput+0x21/0x40 > Jul 23 21:10:05 positronic18696 [<ffffffff8113facd>] sys_readlinkat+0x4d/0xc0 > Jul 23 21:10:05 positronic18696 [<ffffffff8113fb5b>] sys_readlink+0x1b/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff81ac4929>] > system_call_fastpath+0x16/0x1b > Jul 23 21:10:05 positronic18696 Code: b8 00 00 00 48 8b 50 08 44 3b 32 > 0f 83 9e 00 00 00 45 89 f6 49 c1 e6 03 4c 03 72 08 49 8b 16 48 85 d2 > 0f 84 87 00 00 00 48 89 c7 <44> 8b 62 3c e8 b3 67 ea ff 4c 89 ef e8 0b > e0 ff ff 85 c0 0f 84 > Jul 23 21:10:05 positronic18696 RIP [<ffffffff8119f684>] > tid_fd_revalidate+0x84/0x1a0 > Jul 23 21:10:05 positronic18696 RSP <ffff8807ecb4dcd8> > Jul 23 21:10:05 positronic18696 CR2: 000000010000003b > Jul 23 21:10:05 positronic18696 ---[ end trace ccf5b66c39d9275a ]--- > Jul 23 21:10:05 positronic18696 device vmEtap24 entered promiscuous mode > Jul 23 21:10:05 positronic18696 BUG: unable to handle kernel paging > request at 000000010000003b > Jul 23 21:10:05 positronic18696 IP: [<ffffffff8119f684>] > tid_fd_revalidate+0x84/0x1a0 > Jul 23 21:10:05 positronic18696 PGD 7ec9a0067 PUD 0 > Jul 23 21:10:05 positronic18696 Oops: 0000 [#6] SMP > Jul 23 21:10:05 positronic18696 CPU 3 > Jul 23 21:10:05 positronic18696 Modules linked in: kvm_intel kvm > Jul 23 21:10:05 positronic18696 > Jul 23 21:10:05 positronic18696 Pid: 22570, comm: netstat Tainted: G > D 3.5.0-rc7-dirty #6 Dell Inc. PowerEdge M600/0MY736 > Jul 23 21:10:05 positronic18696 RIP: 0010:[<ffffffff8119f684>] > [<ffffffff8119f684>] tid_fd_revalidate+0x84/0x1a0 > Jul 23 21:10:05 positronic18696 RSP: 0018:ffff88066edebcd8 EFLAGS: 00010206 > Jul 23 21:10:05 positronic18696 RAX: ffff8807ee3bf180 RBX: > ffff8807ed065f88 RCX: ffff8807ed051000 > Jul 23 21:10:05 positronic18696 RDX: 00000000ffffffff RSI: > 0000000000000000 RDI: ffff8807ee3bf180 > Jul 23 21:10:05 positronic18696 RBP: ffff88066edebcf8 R08: > ffff8807ed051038 R09: ffffffffffcaffc8 > Jul 23 21:10:05 positronic18696 R10: ffff88066edebc44 R11: > 0000000000000004 R12: ffff8807ed051000 > Jul 23 21:10:05 positronic18696 R13: ffff8807ee1ab000 R14: > ffff8807eb875038 R15: ffff880813b59c20 > Jul 23 21:10:05 positronic18696 FS: 00007f914b112700(0000) > GS:ffff88083fcc0000(0000) knlGS:0000000000000000 > Jul 23 21:10:05 positronic18696 CS: 0010 DS: 0000 ES: 0000 CR0: > 0000000080050033 > Jul 23 21:10:05 positronic18696 CR2: 000000010000003b CR3: > 00000005a4c9b000 CR4: 00000000000027e0 > Jul 23 21:10:05 positronic18696 DR0: 0000000000000001 DR1: > 0000000000000002 DR2: 0000000000000001 > Jul 23 21:10:05 positronic18696 DR3: 000000000000000a DR6: > 00000000ffff0ff0 DR7: 0000000000000400 > Jul 23 21:10:05 positronic18696 Process netstat (pid: 22570, > threadinfo ffff88066edea000, task ffff8807eefa2000) > Jul 23 21:10:05 positronic18696 Stack: > Jul 23 21:10:05 positronic18696 ffff88066edebdb8 ffff88066edebe48 > ffff88066edebdc8 0000000000000001 > Jul 23 21:10:05 positronic18696 ffff88066edebd58 ffffffff811460dc > ffff880813b59c20 ffff8807ed051000 > Jul 23 21:10:05 positronic18696 0000000000000001 ffff8807ed0642a8 > 0000000000000040 ffff88066edebe48 > Jul 23 21:10:05 positronic18696 Call Trace: > Jul 23 21:10:05 positronic18696 [<ffffffff811460dc>] lookup_fast+0x1fc/0x2f0 > Jul 23 21:10:05 positronic18696 [<ffffffff81147d2d>] path_lookupat+0x12d/0x780 > Jul 23 21:10:05 positronic18696 [<ffffffff81150d94>] ? dynamic_dname+0x94/0xa0 > Jul 23 21:10:05 positronic18696 [<ffffffff811483b3>] do_path_lookup+0x33/0x80 > Jul 23 21:10:05 positronic18696 [<ffffffff811486a9>] > user_path_at_empty+0x59/0xb0 > Jul 23 21:10:05 positronic18696 [<ffffffff81145ad2>] ? path_put+0x22/0x30 > Jul 23 21:10:05 positronic18696 [<ffffffff81ac3b7e>] ? _raw_spin_lock+0xe/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff8106d29a>] ? lg_local_unlock+0x1a/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff81159264>] ? > mntput_no_expire+0x44/0x140 > Jul 23 21:10:05 positronic18696 [<ffffffff81159381>] ? mntput+0x21/0x40 > Jul 23 21:10:05 positronic18696 [<ffffffff8113facd>] sys_readlinkat+0x4d/0xc0 > Jul 23 21:10:05 positronic18696 [<ffffffff8113fb5b>] sys_readlink+0x1b/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff81ac4929>] > system_call_fastpath+0x16/0x1b > Jul 23 21:10:05 positronic18696 Code: b8 00 00 00 48 8b 50 08 44 3b 32 > 0f 83 9e 00 00 00 45 89 f6 49 c1 e6 03 4c 03 72 08 49 8b 16 48 85 d2 > 0f 84 87 00 00 00 48 89 c7 <44> 8b 62 3c e8 b3 67 ea ff 4c 89 ef e8 0b > e0 ff ff 85 c0 0f 84 > Jul 23 21:10:05 positronic18696 RIP [<ffffffff8119f684>] > tid_fd_revalidate+0x84/0x1a0 > Jul 23 21:10:05 positronic18696 RSP <ffff88066edebcd8> > Jul 23 21:10:05 positronic18696 CR2: 000000010000003b > Jul 23 21:10:05 positronic18696 ---[ end trace ccf5b66c39d9275b ]--- > Jul 23 21:10:05 positronic18696 BUG: unable to handle kernel paging > request at 000000010000003b > Jul 23 21:10:05 positronic18696 IP: [<ffffffff8119f684>] > tid_fd_revalidate+0x84/0x1a0 > Jul 23 21:10:05 positronic18696 PGD 53d536067 PUD 0 > Jul 23 21:10:05 positronic18696 Oops: 0000 [#7] SMP > Jul 23 21:10:05 positronic18696 CPU 1 > Jul 23 21:10:05 positronic18696 Modules linked in: kvm_intel kvm > Jul 23 21:10:05 positronic18696 > Jul 23 21:10:05 positronic18696 Pid: 22727, comm: netstat Tainted: G > D 3.5.0-rc7-dirty #6 Dell Inc. PowerEdge M600/0MY736 > Jul 23 21:10:05 positronic18696 RIP: 0010:[<ffffffff8119f684>] > [<ffffffff8119f684>] tid_fd_revalidate+0x84/0x1a0 > Jul 23 21:10:05 positronic18696 RSP: 0018:ffff8807bf797cd8 EFLAGS: 00010206 > Jul 23 21:10:05 positronic18696 RAX: ffff8807ee3bf180 RBX: > ffff8807ed065f88 RCX: ffff8807ed051000 > Jul 23 21:10:05 positronic18696 RDX: 00000000ffffffff RSI: > 0000000000000000 RDI: ffff8807ee3bf180 > Jul 23 21:10:05 positronic18696 RBP: ffff8807bf797cf8 R08: > ffff8807ed051038 R09: ffffffffffcaffc8 > Jul 23 21:10:05 positronic18696 R10: ffff8807bf797c44 R11: > 0000000000000004 R12: ffff8807ed051000 > Jul 23 21:10:05 positronic18696 R13: ffff8807ee1ab000 R14: > ffff8807eb875038 R15: ffff880813b59c20 > Jul 23 21:10:05 positronic18696 FS: 00007f49e0de2700(0000) > GS:ffff88083fc40000(0000) knlGS:0000000000000000 > Jul 23 21:10:05 positronic18696 CS: 0010 DS: 0000 ES: 0000 CR0: > 0000000080050033 > Jul 23 21:10:05 positronic18696 CR2: 000000010000003b CR3: > 000000066ed95000 CR4: 00000000000027e0 > Jul 23 21:10:05 positronic18696 DR0: 0000000000000001 DR1: > 0000000000000002 DR2: 0000000000000001 > Jul 23 21:10:05 positronic18696 DR3: 000000000000000a DR6: > 00000000ffff0ff0 DR7: 0000000000000400 > Jul 23 21:10:05 positronic18696 Process netstat (pid: 22727, > threadinfo ffff8807bf796000, task ffff8807eeeb1000) > Jul 23 21:10:05 positronic18696 Stack: > Jul 23 21:10:05 positronic18696 ffff8807bf797db8 ffff8807bf797e48 > ffff8807bf797dc8 0000000000000001 > Jul 23 21:10:05 positronic18696 ffff8807bf797d58 ffffffff811460dc > ffff880813b59c20 ffff8807ed051000 > Jul 23 21:10:05 positronic18696 0000000000000001 ffff8807ed0642a8 > 0000000000000040 ffff8807bf797e48 > Jul 23 21:10:05 positronic18696 Call Trace: > Jul 23 21:10:05 positronic18696 [<ffffffff811460dc>] lookup_fast+0x1fc/0x2f0 > Jul 23 21:10:05 positronic18696 [<ffffffff81147d2d>] path_lookupat+0x12d/0x780 > Jul 23 21:10:05 positronic18696 [<ffffffff81150d94>] ? dynamic_dname+0x94/0xa0 > Jul 23 21:10:05 positronic18696 [<ffffffff811483b3>] do_path_lookup+0x33/0x80 > Jul 23 21:10:05 positronic18696 [<ffffffff811486a9>] > user_path_at_empty+0x59/0xb0 > Jul 23 21:10:05 positronic18696 [<ffffffff81145ad2>] ? path_put+0x22/0x30 > Jul 23 21:10:05 positronic18696 [<ffffffff81ac3b7e>] ? _raw_spin_lock+0xe/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff8106d29a>] ? lg_local_unlock+0x1a/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff81159264>] ? > mntput_no_expire+0x44/0x140 > Jul 23 21:10:05 positronic18696 [<ffffffff81159381>] ? mntput+0x21/0x40 > Jul 23 21:10:05 positronic18696 [<ffffffff8113facd>] sys_readlinkat+0x4d/0xc0 > Jul 23 21:10:05 positronic18696 [<ffffffff8113fb5b>] sys_readlink+0x1b/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff81ac4929>] > system_call_fastpath+0x16/0x1b > Jul 23 21:10:05 positronic18696 Code: b8 00 00 00 48 8b 50 08 44 3b 32 > 0f 83 9e 00 00 00 45 89 f6 49 c1 e6 03 4c 03 72 08 49 8b 16 48 85 d2 > 0f 84 87 00 00 00 48 89 c7 <44> 8b 62 3c e8 b3 67 ea ff 4c 89 ef e8 0b > e0 ff ff 85 c0 0f 84 > Jul 23 21:10:05 positronic18696 RIP [<ffffffff8119f684>] > tid_fd_revalidate+0x84/0x1a0 > Jul 23 21:10:05 positronic18696 RSP <ffff8807bf797cd8> > Jul 23 21:10:05 positronic18696 CR2: 000000010000003b > Jul 23 21:10:05 positronic18696 ---[ end trace ccf5b66c39d9275c ]--- > Jul 23 21:10:05 positronic18696 device vmtap25 entered promiscuous mode > Jul 23 21:10:05 positronic18696 BUG: unable to handle kernel paging > request at 000000010000003b > Jul 23 21:10:05 positronic18696 IP: [<ffffffff8119f684>] > tid_fd_revalidate+0x84/0x1a0 > Jul 23 21:10:05 positronic18696 PGD 7c6184067 PUD 0 > Jul 23 21:10:05 positronic18696 Oops: 0000 [#8] SMP > Jul 23 21:10:05 positronic18696 CPU 7 > Jul 23 21:10:05 positronic18696 Modules linked in: kvm_intel kvm > Jul 23 21:10:05 positronic18696 > Jul 23 21:10:05 positronic18696 Pid: 22808, comm: netstat Tainted: G > D 3.5.0-rc7-dirty #6 Dell Inc. PowerEdge M600/0MY736 > Jul 23 21:10:05 positronic18696 RIP: 0010:[<ffffffff8119f684>] > [<ffffffff8119f684>] tid_fd_revalidate+0x84/0x1a0 > Jul 23 21:10:05 positronic18696 RSP: 0018:ffff880771b43cd8 EFLAGS: 00010206 > Jul 23 21:10:05 positronic18696 RAX: ffff8807ee3bf180 RBX: > ffff8807ed065f88 RCX: ffff8807ed051000 > Jul 23 21:10:05 positronic18696 RDX: 00000000ffffffff RSI: > 0000000000000000 RDI: ffff8807ee3bf180 > Jul 23 21:10:05 positronic18696 RBP: ffff880771b43cf8 R08: > ffff8807ed051038 R09: ffffffffffcaffc8 > Jul 23 21:10:05 positronic18696 R10: ffff880771b43c44 R11: > 0000000000000004 R12: ffff8807ed051000 > Jul 23 21:10:05 positronic18696 R13: ffff8807ee1ab000 R14: > ffff8807eb875038 R15: ffff880813b59c20 > Jul 23 21:10:05 positronic18696 FS: 00007f22e3d5f700(0000) > GS:ffff88083fdc0000(0000) knlGS:0000000000000000 > Jul 23 21:10:05 positronic18696 CS: 0010 DS: 0000 ES: 0000 CR0: > 0000000080050033 > Jul 23 21:10:05 positronic18696 CR2: 000000010000003b CR3: > 000000053d5cc000 CR4: 00000000000027e0 > Jul 23 21:10:05 positronic18696 DR0: 0000000000000001 DR1: > 0000000000000002 DR2: 0000000000000001 > Jul 23 21:10:05 positronic18696 DR3: 000000000000000a DR6: > 00000000ffff0ff0 DR7: 0000000000000400 > Jul 23 21:10:05 positronic18696 Process netstat (pid: 22808, > threadinfo ffff880771b42000, task ffff8807e2e36000) > Jul 23 21:10:05 positronic18696 Stack: > Jul 23 21:10:05 positronic18696 ffff880771b43db8 ffff880771b43e48 > ffff880771b43dc8 0000000000000001 > Jul 23 21:10:05 positronic18696 ffff880771b43d58 ffffffff811460dc > ffff880813b59c20 ffff8807ed051000 > Jul 23 21:10:05 positronic18696 0000000000000001 ffff8807ed0642a8 > 0000000000000040 ffff880771b43e48 > Jul 23 21:10:05 positronic18696 Call Trace: > Jul 23 21:10:05 positronic18696 [<ffffffff811460dc>] lookup_fast+0x1fc/0x2f0 > Jul 23 21:10:05 positronic18696 [<ffffffff81147d2d>] path_lookupat+0x12d/0x780 > Jul 23 21:10:05 positronic18696 [<ffffffff81150d94>] ? dynamic_dname+0x94/0xa0 > Jul 23 21:10:05 positronic18696 [<ffffffff811483b3>] do_path_lookup+0x33/0x80 > Jul 23 21:10:05 positronic18696 [<ffffffff811486a9>] > user_path_at_empty+0x59/0xb0 > Jul 23 21:10:05 positronic18696 [<ffffffff81145ad2>] ? path_put+0x22/0x30 > Jul 23 21:10:05 positronic18696 [<ffffffff81ac3b7e>] ? _raw_spin_lock+0xe/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff8106d29a>] ? lg_local_unlock+0x1a/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff81159264>] ? > mntput_no_expire+0x44/0x140 > Jul 23 21:10:05 positronic18696 [<ffffffff81159381>] ? mntput+0x21/0x40 > Jul 23 21:10:05 positronic18696 [<ffffffff8113facd>] sys_readlinkat+0x4d/0xc0 > Jul 23 21:10:05 positronic18696 [<ffffffff8113fb5b>] sys_readlink+0x1b/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff81ac4929>] > system_call_fastpath+0x16/0x1b > Jul 23 21:10:05 positronic18696 Code: b8 00 00 00 48 8b 50 08 44 3b 32 > 0f 83 9e 00 00 00 45 89 f6 49 c1 e6 03 4c 03 72 08 49 8b 16 48 85 d2 > 0f 84 87 00 00 00 48 89 c7 <44> 8b 62 3c e8 b3 67 ea ff 4c 89 ef e8 0b > e0 ff ff 85 c0 0f 84 > Jul 23 21:10:05 positronic18696 RIP [<ffffffff8119f684>] > tid_fd_revalidate+0x84/0x1a0 > Jul 23 21:10:05 positronic18696 RSP <ffff880771b43cd8> > Jul 23 21:10:05 positronic18696 CR2: 000000010000003b > Jul 23 21:10:05 positronic18696 ---[ end trace ccf5b66c39d9275d ]--- > Jul 23 21:10:05 positronic18696 BUG: unable to handle kernel paging > request at 000000010000003b > Jul 23 21:10:05 positronic18696 IP: [<ffffffff8119f684>] > tid_fd_revalidate+0x84/0x1a0 > Jul 23 21:10:05 positronic18696 device vmEtap25 entered promiscuous mode > Jul 23 21:10:05 positronic18696 PGD 771aad067 PUD 0 > Jul 23 21:10:05 positronic18696 Oops: 0000 [#9] SMP > Jul 23 21:10:05 positronic18696 CPU 0 > Jul 23 21:10:05 positronic18696 Modules linked in: kvm_intel kvm > Jul 23 21:10:05 positronic18696 > Jul 23 21:10:05 positronic18696 Pid: 22820, comm: netstat Tainted: G > D 3.5.0-rc7-dirty #6 Dell Inc. PowerEdge M600/0MY736 > Jul 23 21:10:05 positronic18696 RIP: 0010:[<ffffffff8119f684>] > [<ffffffff8119f684>] tid_fd_revalidate+0x84/0x1a0 > Jul 23 21:10:05 positronic18696 RSP: 0018:ffff8807c628fcd8 EFLAGS: 00010206 > Jul 23 21:10:05 positronic18696 RAX: ffff8807ee3bf180 RBX: > ffff8807ed065f88 RCX: ffff8807ed051000 > Jul 23 21:10:05 positronic18696 RDX: 00000000ffffffff RSI: > 0000000000000000 RDI: ffff8807ee3bf180 > Jul 23 21:10:05 positronic18696 RBP: ffff8807c628fcf8 R08: > ffff8807ed051038 R09: ffffffffffcaffc8 > Jul 23 21:10:05 positronic18696 R10: ffff8807c628fc44 R11: > 0000000000000004 R12: ffff8807ed051000 > Jul 23 21:10:05 positronic18696 R13: ffff8807ee1ab000 R14: > ffff8807eb875038 R15: ffff880813b59c20 > Jul 23 21:10:05 positronic18696 FS: 00007fe1972b9700(0000) > GS:ffff88083fc00000(0000) knlGS:0000000000000000 > Jul 23 21:10:05 positronic18696 CS: 0010 DS: 0000 ES: 0000 CR0: > 0000000080050033 > Jul 23 21:10:05 positronic18696 CR2: 000000010000003b CR3: > 00000007a745d000 CR4: 00000000000027e0 > Jul 23 21:10:05 positronic18696 DR0: 0000000000000001 DR1: > 0000000000000002 DR2: 0000000000000001 > Jul 23 21:10:05 positronic18696 DR3: 000000000000000a DR6: > 00000000ffff0ff0 DR7: 0000000000000400 > Jul 23 21:10:05 positronic18696 Process netstat (pid: 22820, > threadinfo ffff8807c628e000, task ffff8807d1a99000) > Jul 23 21:10:05 positronic18696 Stack: > Jul 23 21:10:05 positronic18696 ffff8807c628fdb8 ffff8807c628fe48 > ffff8807c628fdc8 0000000000000001 > Jul 23 21:10:05 positronic18696 ffff8807c628fd58 ffffffff811460dc > ffff880813b59c20 ffff8807ed051000 > Jul 23 21:10:05 positronic18696 0000000000000001 ffff8807ed0642a8 > 0000000000000040 ffff8807c628fe48 > Jul 23 21:10:05 positronic18696 Call Trace: > Jul 23 21:10:05 positronic18696 [<ffffffff811460dc>] lookup_fast+0x1fc/0x2f0 > Jul 23 21:10:05 positronic18696 [<ffffffff81147d2d>] path_lookupat+0x12d/0x780 > Jul 23 21:10:05 positronic18696 [<ffffffff81150d94>] ? dynamic_dname+0x94/0xa0 > Jul 23 21:10:05 positronic18696 [<ffffffff811483b3>] do_path_lookup+0x33/0x80 > Jul 23 21:10:05 positronic18696 [<ffffffff811486a9>] > user_path_at_empty+0x59/0xb0 > Jul 23 21:10:05 positronic18696 [<ffffffff81145ad2>] ? path_put+0x22/0x30 > Jul 23 21:10:05 positronic18696 [<ffffffff81ac3b7e>] ? _raw_spin_lock+0xe/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff8106d29a>] ? lg_local_unlock+0x1a/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff81159264>] ? > mntput_no_expire+0x44/0x140 > Jul 23 21:10:05 positronic18696 [<ffffffff81159381>] ? mntput+0x21/0x40 > Jul 23 21:10:05 positronic18696 [<ffffffff8113facd>] sys_readlinkat+0x4d/0xc0 > Jul 23 21:10:05 positronic18696 [<ffffffff8113fb5b>] sys_readlink+0x1b/0x20 > Jul 23 21:10:05 positronic18696 [<ffffffff81ac4929>] > system_call_fastpath+0x16/0x1b > Jul 23 21:10:05 positronic18696 Code: b8 00 00 00 48 8b 50 08 44 3b 32 > 0f 83 9e 00 00 00 45 89 f6 49 c1 e6 03 4c 03 72 08 49 8b 16 48 85 d2 > 0f 84 87 00 00 00 48 89 c7 <44> 8b 62 3c e8 b3 67 ea ff 4c 89 ef e8 0b > e0 ff ff 85 c0 0f 84 > Jul 23 21:10:05 positronic18696 RIP [<ffffffff8119f684>] > tid_fd_revalidate+0x84/0x1a0 > Jul 23 21:10:05 positronic18696 RSP <ffff8807c628fcd8> > Jul 23 21:10:05 positronic18696 CR2: 000000010000003b > Jul 23 21:10:05 positronic18696 ---[ end trace ccf5b66c39d9275e ]--- > > > > > 2012/7/23 Thadeu Lima de Souza Cascardo <cascardo@...ux.vnet.ibm.com>: > > On Sat, Jul 21, 2012 at 12:59:12AM +0200, nicolas prochazka wrote: > >> Well done > >> 1fd36adcd98c14d2fd97f545293c488775cb2823 : the bug occurs ( cf dump ) > >> 1dce27c5aa6770e9d195f2bb7db1db3d4dde5591 : the bug not occurs > >> > >> Regards, > >> Nicolas Prochazka. > > > > Hi, Nicolas. > > > > I was too hasty in sending you the commit id. There is a bug in 1fd36adc > > that is fixed by commit f044db4cb4bf16893812d35b5fbeaaf3e30c9215. Can > > you test running f044db4cb4? If you find the bug in there, then we know > > that this fix isn't the only one needed for 1fd36adc. > > > > Regards. > > Cascardo. > > > >> > >> dump / 1fd36adcd98c14d2fd97f545293c488775cb2823 > >> lloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> VMtap: no IPv6 routers present > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 71 not NULL! > >> alloc_fd: slot 121 not NULL! > >> alloc_fd: slot 96 not NULL! > >> alloc_fd: slot 100 not NULL! > >> alloc_fd: slot 110 not NULL! > >> alloc_fd: slot 121 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> brE: no IPv6 routers present > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 121 not NULL! > >> alloc_fd: slot 142 not NULL! > >> alloc_fd: slot 153 not NULL! > >> alloc_fd: slot 153 not NULL! > >> alloc_fd: slot 153 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 70 not NULL! > >> alloc_fd: slot 100 not NULL! > >> alloc_fd: slot 102 not NULL! > >> alloc_fd: slot 36 not NULL! > >> alloc_fd: slot 36 not NULL! > >> alloc_fd: slot 36 not NULL! > >> alloc_fd: slot 36 not NULL! > >> alloc_fd: slot 36 not NULL! > >> alloc_fd: slot 106 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 100 not NULL! > >> alloc_fd: slot 100 not NULL! > >> alloc_fd: slot 100 not NULL! > >> alloc_fd: slot 100 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 36 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 106 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 36 not NULL! > >> alloc_fd: slot 100 not NULL! > >> alloc_fd: slot 36 not NULL! > >> alloc_fd: slot 36 not NULL! > >> alloc_fd: slot 36 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 36 not NULL! > >> alloc_fd: slot 36 not NULL! > >> alloc_fd: slot 36 not NULL! > >> alloc_fd: slot 36 not NULL! > >> alloc_fd: slot 36 not NULL! > >> alloc_fd: slot 36 not NULL! > >> alloc_fd: slot 36 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 100 not NULL! > >> alloc_fd: slot 100 not NULL! > >> alloc_fd: slot 100 not NULL! > >> alloc_fd: slot 100 not NULL! > >> alloc_fd: slot 100 not NULL! > >> alloc_fd: slot 100 not NULL! > >> alloc_fd: slot 100 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 100 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 68 not NULL! > >> alloc_fd: slot 100 not NULL! > >> alloc_fd: slot 100 not NULL! > >> ------------[ cut here ]------------ > >> kernel BUG at fs/open.c:873! > >> invalid opcode: 0000 [#1] SMP > >> CPU 0 > >> Modules linked in: kvm_intel kvm > >> > >> then BUG paging request as usual > >> > >> > >> 2012/7/20 Thadeu Lima de Souza Cascardo <cascardo@...ux.vnet.ibm.com>: > >> > On Fri, Jul 20, 2012 at 10:52:40PM +0200, nicolas prochazka wrote: > >> >> Hello > >> >> the problem is occured with : > >> >> - linux kernel 3.4.5 i do not test with 3.4.0 / 1 / 2 / 3 / 4 , > >> >> but i can if you want > >> >> - linux kernel 3.5rc6 rc7 / do not test with other rc. > >> >> > >> >> the problem is not occured with : > >> >> linux kernel 3.3.4 / 3.3.8 > >> >> > >> >> These servers are used for : > >> >> - starting a lot of virtual machine with qemu-kvm ( ~ 40 ) ( lot of > >> >> select i think) > >> >> - do a lot of network tests with openvswitch > >> >> > >> >> I can test a kernel 3.4.x before and after a commit id (?) to find a regression. > >> >> > >> >> Regards, > >> >> Nicolas. > >> >> > >> > > >> > Can you try this commit 1fd36adcd98c14d2fd97f545293c488775cb2823? And > >> > the commit before it? > >> > > >> >> > >> >> 2012/7/20 Thadeu Lima de Souza Cascardo <cascardo@...ux.vnet.ibm.com>: > >> >> > On Fri, Jul 20, 2012 at 09:21:53AM -0400, Dave Jones wrote: > >> >> >> On Fri, Jul 20, 2012 at 11:56:06AM +0200, nicolas prochazka wrote: > >> >> >> > >> >> >> > [ 2384.900061] BUG: unable to handle kernel paging request at 000000010000002f > >> >> >> > >> >> >> That '1' looks like a random bit flip. Try running memtest86. > >> >> >> > >> >> > > >> >> > Looks more a 32-bit value of 1 followed by a 32-bit value of 0x2f. Most > >> >> > likely a pointer to some other piece of a struct. However, taking a look > >> >> > at fs/files.c code, nothing seems suspicious. > >> >> > > >> >> > Nicolas, it wasn't clear to me if you had problems with 3.4 too. There > >> >> > has been some changes in fs/files.c on 3.4-rc1 in the piece of code > >> >> > where you hit the problem. > >> >> > > >> >> > What does your system exercise? Any chance you are using a lot of > >> >> > select, which has also been changed in those same patches to fs/files.c? > >> >> > > >> >> > Regards. > >> >> > Cascardo. > >> >> > > >> >> > > >> >> >> > [ 2384.910010] Pid: 23838, comm: queue.sh Tainted: G D W > >> >> >> > >> >> >> This wasn't the first problem either. > >> >> >> > >> >> >> > [ 2397.885344] BUG: unable to handle kernel paging request at 000000010000003b > >> >> >> > >> >> >> Looks like the same flipped bit. > >> >> >> > >> >> >> Dave > >> >> >> > >> >> >> -- > >> >> >> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > >> >> >> the body of a message to majordomo@...r.kernel.org > >> >> >> More majordomo info at http://vger.kernel.org/majordomo-info.html > >> >> >> Please read the FAQ at http://www.tux.org/lkml/ > >> >> >> > >> >> > > >> >> > >> > > >> -- > >> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > >> the body of a message to majordomo@...r.kernel.org > >> More majordomo info at http://vger.kernel.org/majordomo-info.html > >> Please read the FAQ at http://www.tux.org/lkml/ > >> > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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