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Message-ID: <1333390230.13718.34.camel@lade.trondhjem.org> Date: Mon, 2 Apr 2012 18:10:20 +0000 From: "Myklebust, Trond" <Trond.Myklebust@...app.com> To: Dave Jones <davej@...hat.com>, Stanislav Kinsbursky <skinsbursky@...allels.com> CC: Linux Kernel <linux-kernel@...r.kernel.org>, "netdev@...r.kernel.org" <netdev@...r.kernel.org> Subject: Re: kernel BUG at include/net/netns/generic.h:41 This looks related to the recent net namespace changes, so I'm adding Stanislav. Cheers Trond On Mon, 2012-04-02 at 13:26 -0400, Dave Jones wrote: > [added Trond to cc:] > > still seeing this in 3.4rc1 > > Dave > > > On Tue, Mar 27, 2012 at 08:23:46PM -0400, Dave Jones wrote: > > I started seeing this every boot.. (v3.3-6972-ge22057c) > > > > [ 17.103931] ------------[ cut here ]------------ > > [ 17.105987] RPC: Registered named UNIX socket transport module. > > [ 17.105989] RPC: Registered udp transport module. > > [ 17.105990] RPC: Registered tcp transport module. > > [ 17.105992] RPC: Registered tcp NFSv4.1 backchannel transport module. > > [ 17.104856] kernel BUG at include/net/netns/generic.h:41! > > [ 17.104856] invalid opcode: 0000 [#1] PREEMPT SMP > > [ 17.104856] CPU 0 > > [ 17.104856] Modules linked in: sunrpc btrfs zlib_deflate libcrc32c firewire_ohci firewire_core sata_sil crc_itu_t floppy radeon ttm drm_kms_helper drm i2c_algo_bit i2c_core > > [ 17.104856] > > [ 17.104856] Pid: 416, comm: mount Not tainted 3.3.0+ #19 /D975XBX > > [ 17.104856] RIP: 0010:[<ffffffffa029068b>] [<ffffffffa029068b>] rpc_fill_super+0x29b/0x2a0 [sunrpc] > > [ 17.104856] RSP: 0018:ffff8800b52c5cf8 EFLAGS: 00010246 > > [ 17.104856] RAX: 0000000000000001 RBX: ffff8800a394dcd0 RCX: 0000000000000000 > > [ 17.104856] RDX: ffff8800a4c10000 RSI: ffffffff81c2cd00 RDI: ffff8800a4c10918 > > [ 17.104856] RBP: ffff8800b52c5d38 R08: 0000000000000001 R09: 0000000000000000 > > [ 17.104856] R10: 0000000000000001 R11: 0000000000000002 R12: 0000000000000000 > > [ 17.104856] R13: ffffffff82d0f140 R14: ffff8800ba54c000 R15: 0000000000000000 > > [ 17.104856] FS: 00007f1a97593800(0000) GS:ffff8800bf600000(0000) knlGS:0000000000000000 > > [ 17.104856] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > > [ 17.104856] CR2: 0000003e92478a90 CR3: 00000000a4d22000 CR4: 00000000000007f0 > > [ 17.104856] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > > [ 17.104856] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > > [ 17.104856] Process mount (pid: 416, threadinfo ffff8800b52c4000, task ffff8800a4c10000) > > [ 17.104856] Stack: > > [ 17.104856] ffffffffa02903f0 00000000000000d0 000060ff40002438 ffffffff82d0f140 > > [ 17.104856] 0000000000000000 ffffffffa02903f0 ffff8800a394dcd0 0000000000000000 > > [ 17.104856] ffff8800b52c5d88 ffffffff811a9d8c 0000000000000003 ffffffff00000001 > > [ 17.104856] Call Trace: > > [ 17.104856] [<ffffffffa02903f0>] ? rpc_mkpipe_dentry+0x180/0x180 [sunrpc] > > [ 17.104856] [<ffffffffa02903f0>] ? rpc_mkpipe_dentry+0x180/0x180 [sunrpc] > > [ 17.104856] [<ffffffff811a9d8c>] mount_ns+0xac/0xe0 > > [ 17.104856] [<ffffffffa028ea39>] rpc_mount+0x29/0x30 [sunrpc] > > [ 17.104856] [<ffffffff811aaab3>] mount_fs+0x43/0x1b0 > > [ 17.104856] [<ffffffff8115dd80>] ? __alloc_percpu+0x10/0x20 > > [ 17.104856] [<ffffffff811c8af2>] vfs_kern_mount+0x72/0x100 > > [ 17.104856] [<ffffffff811c92d4>] do_kern_mount+0x54/0x110 > > [ 17.104856] [<ffffffff811caa44>] do_mount+0x1a4/0x830 > > [ 17.104856] [<ffffffff8115765b>] ? memdup_user+0x4b/0x90 > > [ 17.104856] [<ffffffff811576fb>] ? strndup_user+0x5b/0x80 > > [ 17.104856] [<ffffffff811cb210>] sys_mount+0x90/0xe0 > > [ 17.104856] [<ffffffff816624d2>] system_call_fastpath+0x16/0x1b > > [ 17.104856] Code: e8 db 7a e6 e0 84 c0 74 c9 48 c7 c7 00 cd c2 81 e8 bb e5 e1 e0 85 c0 0f 85 f4 fd ff ff eb b3 90 41 bf f4 ff ff ff e9 ce fe ff ff <0f> 0b 0f 0b 90 55 48 89 e5 41 54 53 48 83 ec 10 66 66 66 66 90 > > [ 17.104856] RIP [<ffffffffa029068b>] rpc_fill_super+0x29b/0x2a0 [sunrpc] > > [ 17.104856] RSP <ffff8800b52c5cf8> > > [ 17.469688] ---[ end trace 74871f164631364c ]--- > > [ 17.488286] BUG: sleeping function called from invalid context at kernel/rwsem.c:21 > > [ 17.498626] in_atomic(): 0, irqs_disabled(): 0, pid: 416, name: mount > > [ 17.498629] INFO: lockdep is turned off. > > [ 17.498631] Pid: 416, comm: mount Tainted: G D 3.3.0+ #19 > > [ 17.498632] Call Trace: > > [ 17.498639] [<ffffffff8107d96c>] __might_sleep+0x13c/0x1f0 > > [ 17.498644] [<ffffffff81657c06>] down_read+0x26/0x93 > > [ 17.498646] [<ffffffff81061164>] exit_signals+0x24/0x130 > > [ 17.498650] [<ffffffff8104d3cf>] do_exit+0xbf/0xb60 > > [ 17.498652] [<ffffffff8104a443>] ? kmsg_dump+0x1c3/0x2c0 > > [ 17.498654] [<ffffffff8104a2ff>] ? kmsg_dump+0x7f/0x2c0 > > [ 17.498657] [<ffffffff8165b9d4>] oops_end+0xa4/0xf0 > > [ 17.498660] [<ffffffff81005be8>] die+0x58/0x90 > > [ 17.498662] [<ffffffff8165b2f4>] do_trap+0xc4/0x170 > > [ 17.498665] [<ffffffff81002f35>] ? do_invalid_op+0xa5/0xb0 > > [ 17.498667] [<ffffffff81002f25>] do_invalid_op+0x95/0xb0 > > [ 17.498684] [<ffffffffa029068b>] ? rpc_fill_super+0x29b/0x2a0 [sunrpc] > > [ 17.498686] [<ffffffff8165e3cd>] ? sub_preempt_count+0x9d/0xd0 > > [ 17.498689] [<ffffffff8131baad>] ? trace_hardirqs_off_thunk+0x3a/0x3c > > [ 17.498692] [<ffffffff8165ac4d>] ? restore_args+0x30/0x30 > > [ 17.498696] [<ffffffff81663755>] invalid_op+0x15/0x20 > > [ 17.498704] [<ffffffffa029068b>] ? rpc_fill_super+0x29b/0x2a0 [sunrpc] > > [ 17.498713] [<ffffffffa0290675>] ? rpc_fill_super+0x285/0x2a0 [sunrpc] > > [ 17.498721] [<ffffffffa02903f0>] ? rpc_mkpipe_dentry+0x180/0x180 [sunrpc] > > [ 17.498731] [<ffffffffa02903f0>] ? rpc_mkpipe_dentry+0x180/0x180 [sunrpc] > > [ 17.498734] [<ffffffff811a9d8c>] mount_ns+0xac/0xe0 > > [ 17.498743] [<ffffffffa028ea39>] rpc_mount+0x29/0x30 [sunrpc] > > [ 17.498746] [<ffffffff811aaab3>] mount_fs+0x43/0x1b0 > > [ 17.498750] [<ffffffff8115dd80>] ? __alloc_percpu+0x10/0x20 > > [ 17.498754] [<ffffffff811c8af2>] vfs_kern_mount+0x72/0x100 > > [ 17.498756] [<ffffffff811c92d4>] do_kern_mount+0x54/0x110 > > [ 17.498760] [<ffffffff811caa44>] do_mount+0x1a4/0x830 > > [ 17.498763] [<ffffffff8115765b>] ? memdup_user+0x4b/0x90 > > [ 17.498765] [<ffffffff811576fb>] ? strndup_user+0x5b/0x80 > > [ 17.498769] [<ffffffff811cb210>] sys_mount+0x90/0xe0 > > [ 17.498773] [<ffffffff816624d2>] system_call_fastpath+0x16/0x1b > > [ 17.775067] systemd[1]: var-lib-nfs-rpc_pipefs.mount mount process exited, code=killed status=11 > > [ 17.829617] systemd[1]: Job nfs-idmap.service/start failed with result 'dependency'. > > [ 17.856061] systemd[1]: Unit var-lib-nfs-rpc_pipefs.mount entered failed state. > > > ---end quoted text--- -- Trond Myklebust Linux NFS client maintainer NetApp Trond.Myklebust@...app.com www.netapp.com
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