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Message-ID: <20140207023801.GC11051@localhost> Date: Fri, 7 Feb 2014 10:38:01 +0800 From: Fengguang Wu <fengguang.wu@...el.com> To: Filipe David Borba Manana <fdmanana@...il.com> Cc: Chris Mason <clm@...com>, linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [btrfs] BUG: unable to handle kernel NULL pointer dereference at 0000000000000038 Filipe, Here is another bisect result. The first bad commit could be any of: 0b947aff1599afbbd2ec07ada87b05af0f94cf10 Btrfs: use btrfs_crc32c everywhere instead of libcrc32c 60efa5eb2e886852a0d5f9e1ffa7c896a1099da8 Btrfs: use late_initcall instead of module_init 8101c8dbf6243ba517aab58d69bf1bc37d8b7b9c Btrfs: disable snapshot aware defrag for now 878a876b2e10888afe53766dcca33f723ae20edc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs We cannot bisect more! +---------------------------------------------------------+----+ | | | +---------------------------------------------------------+----+ | boot_successes | 0 | | boot_failures | 19 | | BUG:kernel_boot_hang | 10 | | BUG:unable_to_handle_kernel_NULL_pointer_dereference_at | 9 | | Oops | 9 | | RIP:pr_cont_kernfs_name | 9 | | backtrace:do_fork | 9 | | BUG:soft_lockup-CPU_stuck_for_s | 1 | | RIP:delay_tsc | 1 | | Kernel_panic-not_syncing:softlockup:hung_tasks | 1 | +---------------------------------------------------------+----+ [ 1.625020] BTRFS: selftest: Running btrfs_split_item tests [ 1.627004] BTRFS: selftest: Running find delalloc tests [ 2.289182] tsc: Refined TSC clocksource calibration: 2299.967 MHz [ 292.084537] kthreadd invoked oom-killer: gfp_mask=0x3000d0, order=1, oom_score_adj=0 [ 292.086439] kthreadd cpuset= [ 292.087072] BUG: unable to handle kernel NULL pointer dereference at 0000000000000038 [ 292.087372] IP: [<ffffffff812119de>] pr_cont_kernfs_name+0x1b/0x6c [ 292.087372] PGD 0 [ 292.087372] Oops: 0000 [#1] [ 292.087372] Modules linked in: [ 292.087372] CPU: 0 PID: 2 Comm: kthreadd Not tainted 3.14.0-rc1-wl-ath-00978-g4830363 #2 [ 292.087372] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 292.087372] task: ffff880000148050 ti: ffff88000014a000 task.ti: ffff88000014a000 [ 292.087372] RIP: 0010:[<ffffffff812119de>] [<ffffffff812119de>] pr_cont_kernfs_name+0x1b/0x6c [ 292.087372] RSP: 0000:ffff88000014bb20 EFLAGS: 00010046 [ 292.087372] RAX: 0000000000000282 RBX: 0000000000000000 RCX: 0000000000000002 [ 292.087372] RDX: ffffffff812119de RSI: ffffffff8247d4a8 RDI: 0000000000000046 [ 292.087372] RBP: ffff88000014bb30 R08: ffffffff82f31218 R09: 0000000000000000 [ 292.087372] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff833c4ab8 [ 292.087372] R13: 00000000003000d0 R14: 0000000000000001 R15: 0000000000000000 [ 292.087372] FS: 0000000000000000(0000) GS:ffffffff82279000(0000) knlGS:0000000000000000 [ 292.087372] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 292.087372] CR2: 0000000000000038 CR3: 0000000002269000 CR4: 00000000000006b0 [ 292.087372] Stack: [ 292.087372] ffff880000148050 ffffffff833c4ab8 ffff88000014bb50 ffffffff8110836d [ 292.087372] ffff880000148050 ffff880000148530 ffff88000014bbd0 ffffffff81ae2614 [ 292.087372] ffff880000148640 ffff88000014bb78 ffffffff810c7dd7 ffff88000014bb98 [ 292.087372] Call Trace: [ 292.087372] [<ffffffff8110836d>] cpuset_print_task_mems_allowed+0x65/0x8b [ 292.087372] [<ffffffff81ae2614>] dump_header.isra.11+0x68/0x29a [ 292.087372] [<ffffffff810c7dd7>] ? local_clock+0x2b/0x34 [ 292.087372] [<ffffffff810ce52b>] ? lock_release_holdtime+0xcf/0xdb [ 292.087372] [<ffffffff811533d2>] ? out_of_memory+0x318/0x40f [ 292.087372] [<ffffffff8115342d>] out_of_memory+0x373/0x40f [ 292.087372] [<ffffffff8115324d>] ? out_of_memory+0x193/0x40f [ 292.087372] [<ffffffff8115a0ac>] __alloc_pages_nodemask+0xdd1/0x12c4 [ 292.087372] [<ffffffff8100d301>] ? native_sched_clock+0xe4/0xfc [ 292.087372] [<ffffffff81089519>] copy_process+0x21d/0x2115 [ 292.087372] [<ffffffff810b693e>] ? kthread_create_on_node+0x23e/0x23e [ 292.087372] [<ffffffff8100d322>] ? sched_clock+0x9/0xd [ 292.087372] [<ffffffff810c7aa7>] ? sched_clock_local.constprop.2+0x35/0xc8 [ 292.087372] [<ffffffff810360bf>] ? pvclock_clocksource_read+0x9b/0x140 [ 292.087372] [<ffffffff810b693e>] ? kthread_create_on_node+0x23e/0x23e [ 292.087372] [<ffffffff8108b61c>] do_fork+0x105/0x4db [ 292.087372] [<ffffffff810c7d54>] ? sched_clock_cpu+0xc9/0xdb [ 292.087372] [<ffffffff810c7dd7>] ? local_clock+0x2b/0x34 [ 292.087372] [<ffffffff810ce52b>] ? lock_release_holdtime+0xcf/0xdb [ 292.087372] [<ffffffff810b768d>] ? kthreadd+0x1b3/0x24a [ 292.087372] [<ffffffff8108ba18>] kernel_thread+0x26/0x28 [ 292.087372] [<ffffffff810b76a1>] kthreadd+0x1c7/0x24a [ 292.087372] [<ffffffff81afc50a>] ? ret_from_fork+0x7a/0xb0 [ 292.087372] [<ffffffff810b74da>] ? kthread_create_on_cpu+0x7a/0x7a [ 292.087372] [<ffffffff81afc50a>] ret_from_fork+0x7a/0xb0 [ 292.087372] [<ffffffff810b74da>] ? kthread_create_on_cpu+0x7a/0x7a [ 292.087372] Code: 1c 92 8e 00 48 8b 45 e0 59 5b 41 5c 41 5d 5d c3 0f 1f 44 00 00 55 48 89 e5 41 54 53 48 89 fb 48 c7 c7 90 d4 47 82 e8 b1 8f 8e 00 <48> 83 7b 38 00 49 89 c4 74 06 48 8b 73 40 eb 07 48 c7 c6 48 fe [ 292.087372] RIP [<ffffffff812119de>] pr_cont_kernfs_name+0x1b/0x6c [ 292.087372] RSP <ffff88000014bb20> [ 292.087372] CR2: 0000000000000038 [ 292.087372] ---[ end trace df25444498a82119 ]--- [ 292.087372] ---[ end trace df25444498a82119 ]--- git bisect start 483036322b45d800fd68cb028874b6cd4fee3dba 38dbfb59d1175ef458d006556061adeaa8751b72 -- git bisect bad 50a557bc0d03997d9203d749b0304c54d2c6e5f5 # 02:20 0- 5 Merge 'cgroup/review-simplify' into devel-hourly-2014020601 git bisect bad c04e036e53a39cf2986ddaaf5607ff011f9ea55b # 03:14 0- 1 Merge 'pinctrl/for-next' into devel-hourly-2014020601 git bisect good 08ce20bd7ef9a08b74cdfe6fe454374be72b5825 # 03:58 25+ 0 Merge 'pci/pci/msi' into devel-hourly-2014020601 git bisect good 4f86564c657669f69c9cc03151ef6f23ae9e2015 # 04:32 25+ 0 Merge 'm68knommu/cf' into devel-hourly-2014020601 git bisect bad 29ae23c20b538664beaea72bb0721ce2538b4ca9 # 04:50 0- 11 Merge 'm68knommu/cfmmu' into devel-hourly-2014020601 git bisect bad bbce71dbd03db3cf6df7faba0132d87a1a055827 # 04:58 0- 3 Merge 'nfs/devel' into devel-hourly-2014020601 git bisect good 88a78a912ee059467ae6db7429a6efe4654620a5 # 06:16 25+ 1 Merge branch 'acl_fixes' into linux-next git bisect good 12b13835a0a8bfabea68741e1ab4d4a4cb77d037 # 06:36 25+ 0 kbuild: don't enable DEBUG_INFO when building for COMPILE_TEST git bisect bad 1f35d872a0b9dd05de8f0e50fc2957bf74ea30f7 # 06:55 0- 9 NFS: Shrink nfs_inode by sharing storage for cookieverf and commit_info git bisect bad 878a876b2e10888afe53766dcca33f723ae20edc # 07:16 0- 4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs git bisect good d7512f79fd6cb8e2d9b78770289df6391a867ca1 # 07:20 25+ 0 Merge tag 'nfs-for-3.14-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs git bisect bad 9343224bfd4be6a02e6ae0c0d66426c955c7d76e # 07:34 0- 12 Merge branch 'akpm' (patches from Andrew Morton) git bisect bad 0cc2aa51be9d2f2b001c0e070b2e5cdde89b39f4 # 07:47 0- 10 Add linux-next specific files for 20140206 Thanks, Fengguang View attachment "dmesg-yocto-snb-38:20140206063627:x86_64-randconfig-i5-02060610:3.14.0-rc1-wl-ath-00978-g4830363:2" of type "text/plain" (86798 bytes) View attachment "config-3.14.0-rc1-wl-ath-00978-g4830363" of type "text/plain" (102770 bytes) _______________________________________________ LKP mailing list LKP@...ux.intel.com
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