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Message-ID: <501AD4D2.80007@vetienne.net>
Date: Thu, 02 Aug 2012 21:28:18 +0200
From: Vincent ETIENNE <ve@vetienne.net>
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To: Vincent ETIENNE <vetienne@aprogsys.com>
CC: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
        Alexander Viro <viro@zeniv.linux.org.uk>, ocfs2-devel@oss.oracle.com,
        sunil.mushran@gmail.com
Subject: Re: kernel BUG at fs/buffer.c:2886! Linux 3.5.0
References: <501313B6.70801@aprogsys.com> <20120730063000.GA4025@dhcp-172-17-9-228.mtv.corp.google.com> <50163B8A.7060509@aprogsys.com> <20120730075333.GC4025@dhcp-172-17-9-228.mtv.corp.google.com> <5016D2C0.6090708@vetienne.net> <501994E8.9070100@aprogsys.com> <501995B7.2030405@vetienne.net> <501A2A7E.10702@aprogsys.com>
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Hi

based on current git ( commit 1a9b4993b70fb1884716902774dc9025b457760d )
and  reverting commit  ea022dfb3c2a4680483b00eb2fecc9fc4f6091d1

commit ea022dfb3c2a4680483b00eb2fecc9fc4f6091d1
Author: Al Viro <viro@zeniv.linux.org.uk>
Date:   Thu May 3 10:14:29 2012 -0400

    ocfs: simplify symlink handling

Suppress

Jul 31 09:42:12 jupiter2 kernel: [  594.244726] kernel BUG at fs/buffer.c:2886!
Jul 31 09:42:12 jupiter2 kernel: [  594.244768] invalid opcode: 0000 [#1] SMP
Jul 31 09:42:12 jupiter2 kernel: [  594.244874] CPU 0
Jul 31 09:42:12 jupiter2 kernel: [  594.244911] Modules linked in: drbd lru_cache [last unloaded: drbd]
Jul 31 09:42:12 jupiter2 kernel: [  594.245121]
Jul 31 09:42:12 jupiter2 kernel: [  594.245156] Pid: 5725, comm: deliver Not tainted 3.5.0-gentoo #3 HP ProLiant ML150 G3/ML150 G3
Jul 31 09:42:12 jupiter2 kernel: [  594.245302] RIP: 0010:[<ffffffff81180862>]  [<ffffffff81180862>] submit_bh+0x112/0x120
Jul 31 09:42:12 jupiter2 kernel: [  594.245389] RSP: 0018:ffff88006032fb38  EFLAGS: 00010246
Jul 31 09:42:12 jupiter2 kernel: [  594.245432] RAX: 4000000001000004 RBX: ffffea00014a1a80 RCX: 00000003ffffffff
Jul 31 09:42:12 jupiter2 kernel: [  594.245478] RDX: 0000000000000001 RSI: ffffea00014a1a80 RDI: 0000000000000000
Jul 31 09:42:12 jupiter2 kernel: [  594.245523] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff81346ad0
Jul 31 09:42:12 jupiter2 kernel: [  594.245569] R10: dead000000200200 R11: 0000000000000000 R12: 0000000004cc4789
Jul 31 09:42:12 jupiter2 kernel: [  594.245614] R13: 00000003ffffffff R14: 0000000000000000 R15: 0000000000000000
Jul 31 09:42:12 jupiter2 kernel: [  594.245661] FS:  00007f23be7e6700(0000) GS:ffff88007fc00000(0000) knlGS:0000000000000000
Jul 31 09:42:12 jupiter2 kernel: [  594.245708] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
Jul 31 09:42:12 jupiter2 kernel: [  594.245752] CR2: 00007f23bd098b6c CR3: 0000000061cfd000 CR4: 00000000000007f0
Jul 31 09:42:12 jupiter2 kernel: [  594.245853] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jul 31 09:42:12 jupiter2 kernel: [  594.245954] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Jul 31 09:42:12 jupiter2 kernel: [  594.246058] Process deliver (pid: 5725, threadinfo ffff88006032e000, task ffff88007c7f1e00)
Jul 31 09:42:12 jupiter2 kernel: [  594.246218] Stack:
Jul 31 09:42:12 jupiter2 kernel: [  594.246311]  ffffea00014a1a80 0000000000000001 0000000004cc4789 ffffffff81327546
Jul 31 09:42:12 jupiter2 kernel: [  594.246598]  0000000053a6db78 00000001800e000e ffff88007c7f2468 ffff88006032fc10
Jul 31 09:42:12 jupiter2 kernel: [  594.246885]  0000000000000000 0000000100000000 ffff880053a7e9b0 ffff880056f32000
Jul 31 09:42:12 jupiter2 kernel: [  594.247173] Call Trace:
Jul 31 09:42:12 jupiter2 kernel: [  594.247271]  [<ffffffff81327546>] ? ocfs2_read_blocks+0x176/0x6c0
Jul 31 09:42:12 jupiter2 kernel: [  594.247373]  [<ffffffff81346ad0>] ? ocfs2_find_actor+0x120/0x120
Jul 31 09:42:12 jupiter2 kernel: [  594.247474]  [<ffffffff813464f7>] ? ocfs2_read_inode_block_full+0x37/0x60
Jul 31 09:42:12 jupiter2 kernel: [  594.247578]  [<ffffffff813964ff>] ? ocfs2_fast_symlink_readpage+0x2f/0x160
Jul 31 09:42:12 jupiter2 kernel: [  594.247683]  [<ffffffff81111585>] ? do_read_cache_page+0x85/0x180
Jul 31 09:42:12 jupiter2 kernel: [  594.247784]  [<ffffffff813964d0>] ? ocfs2_fill_super+0x2500/0x2500
Jul 31 09:42:12 jupiter2 kernel: [  594.247883]  [<ffffffff811116d9>] ? read_cache_page+0x9/0x20
Jul 31 09:42:12 jupiter2 kernel: [  594.247984]  [<ffffffff8115c705>] ? page_getlink+0x25/0x80
Jul 31 09:42:12 jupiter2 kernel: [  594.248083]  [<ffffffff8115c77b>] ? page_follow_link_light+0x1b/0x30
Jul 31 09:42:12 jupiter2 kernel: [  594.248186]  [<ffffffff8116099b>] ? path_lookupat+0x38b/0x720
Jul 31 09:42:12 jupiter2 kernel: [  594.248286]  [<ffffffff81160d5c>] ? do_path_lookup+0x2c/0xd0
Jul 31 09:42:12 jupiter2 kernel: [  594.248385]  [<ffffffff81346f31>] ? ocfs2_inode_revalidate+0x71/0x160
Jul 31 09:42:12 jupiter2 kernel: [  594.248492]  [<ffffffff8106b9d7>] ? flush_tlb_others_ipi+0x107/0x130
Jul 31 09:42:12 jupiter2 kernel: [  594.248594]  [<ffffffff81161c0c>] ? user_path_at_empty+0x5c/0xb0
Jul 31 09:42:12 jupiter2 kernel: [  594.248694]  [<ffffffff8106714a>] ? do_page_fault+0x1aa/0x3c0
Jul 31 09:42:12 jupiter2 kernel: [  594.248789]  [<ffffffff81156f2d>] ? cp_new_stat+0x10d/0x120
Jul 31 09:42:12 jupiter2 kernel: [  594.248884]  [<ffffffff81157021>] ? vfs_fstatat+0x41/0x80
Jul 31 09:42:12 jupiter2 kernel: [  594.248978]  [<ffffffff8115715f>] ? sys_newstat+0x1f/0x50
Jul 31 09:42:12 jupiter2 kernel: [  594.249075]  [<ffffffff817ecee2>] ? system_call_fastpath+0x16/0x1b
Jul 31 09:42:12 jupiter2 kernel: [  594.249169] Code: b6 44 24 18 4c 89 e7 83 e0 80 3c 01 19 db e8 76 3f 00 00 f7 d3 83 e3 a1 89 d8 5b 5d 41 5c c3 0f 0b eb fe 0f 0b eb fe 0f 0$
Jul 31 09:42:12 jupiter2 kernel: [  594.250003] RIP  [<ffffffff81180862>] submit_bh+0x112/0x120

and  adding the correction from

https://oss.oracle.com/git/?p=smushran/linux-2.6.git;a=commit;h=a2118b301104a24381b414bc93371d666fe8d43a

suppres the fallocate bug
 
and lead to no oops. At least immediatly. Will let it run some times






On 02/08/2012 09:21, Vincent ETIENNE wrote:
> Hi,
>
> So 12 commits left, corresponding to this bisection log
>
> git bisect start
> # bad: [2d534926205db9ffce4bbbde67cb9b2cee4b835c] Merge tag
> 'irqdomain-for-linus' of git://git.secretlab.ca/git/linux-2.6
> git bisect bad 2d534926205db9ffce4bbbde67cb9b2cee4b835c
> # good: [c3b92c8787367a8bb53d57d9789b558f1295cc96] Linux 3.1
> git bisect good c3b92c8787367a8bb53d57d9789b558f1295cc96
> # good: [95211279c5ad00a317c98221d7e4365e02f20836] Merge branch 'akpm'
> (Andrew's patch-bomb)
> git bisect good 95211279c5ad00a317c98221d7e4365e02f20836
> # good: [654443e20dfc0617231f28a07c96a979ee1a0239] Merge branch
> 'perf-uprobes-for-linus' of
> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
> git bisect good 654443e20dfc0617231f28a07c96a979ee1a0239
> # bad: [f0a08fcb5972167e55faa330c4a24fbaa3328b1f] Merge
> git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
> git bisect bad f0a08fcb5972167e55faa330c4a24fbaa3328b1f
> # bad: [f5e7e844a571124ffc117d4696787d6afc4fc5ae] Merge tag
> 'for-linus-3.5-20120601' of git://git.infradead.org/linux-mtd
> git bisect bad f5e7e844a571124ffc117d4696787d6afc4fc5ae
> # good: [f465d145d76803fe6332092775d891c8c509aa44] Merge tag
> 'cleanup-initcall' of
> git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
> git bisect good f465d145d76803fe6332092775d891c8c509aa44
> # good: [a70f35af4e49f87ba4b6c4b30220fbb66cd74af6] Merge branch
> 'for-3.5/drivers' of git://git.kernel.dk/linux-block
> git bisect good a70f35af4e49f87ba4b6c4b30220fbb66cd74af6
> # good: [a00b6151a2ae4c52576c35d3998e144a993d50b8] Merge branch
> 'for-3.5-take-2' of git://linux-nfs.org/~bfields/linux
> git bisect good a00b6151a2ae4c52576c35d3998e144a993d50b8
> # bad: [1193755ac6328ad240ba987e6ec41d5e8baf0680] Merge branch
> 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
> git bisect bad 1193755ac6328ad240ba987e6ec41d5e8baf0680
> # good: [51eab603f5c86dd1eae4c525df3e7f7eeab401d6] Merge branch
> 'for-linus' of
> git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
> git bisect good 51eab603f5c86dd1eae4c525df3e7f7eeab401d6
> # bad: [eb36c5873b96e8c7376768d3906da74aae6e3839] new helper:
> vm_mmap_pgoff()
> git bisect bad eb36c5873b96e8c7376768d3906da74aae6e3839
> # skip: [eea62f831b8030b0eeea8314eed73b6132d1de26] brlocks/lglocks: turn
> into functions
> git bisect skip eea62f831b8030b0eeea8314eed73b6132d1de26
> # good: [52576da3545e78c534d901a39f6f2391665c641b] hpfs: bitmaps are
> little-endian
> git bisect good 52576da3545e78c534d901a39f6f2391665c641b
> # bad: [3ed37648e1cbf1bbebc200c6ea8fd8daf8325843] fs: move
> file_remove_suid() to fs/inode.c
> git bisect bad 3ed37648e1cbf1bbebc200c6ea8fd8daf8325843
> # bad: [962830df366b66e71849040770ae6ba55a8b4aec] brlocks/lglocks: API
> cleanups
> git bisect bad 962830df366b66e71849040770ae6ba55a8b4aec
>
> the commit left are
>
> commit 962830df366b66e71849040770ae6ba55a8b4aec
> Author: Andi Kleen <ak@linux.intel.com>
> Date:   Tue May 8 13:32:02 2012 +0930
>
>     brlocks/lglocks: API cleanups
>
>
> commit eea62f831b8030b0eeea8314eed73b6132d1de26
> Author: Andi Kleen <ak@linux.intel.com>
> Date:   Tue May 8 13:32:24 2012 +0930
>
>     brlocks/lglocks: turn into functions
>
> commit 9dd6fa03ab31bb57cee4623a689d058d222fbe68
> Author: Rusty Russell <rusty@rustcorp.com.au>
> Date:   Tue May 8 13:29:45 2012 +0930
>
>     lglock: remove online variants of lock
>
> commit ea022dfb3c2a4680483b00eb2fecc9fc4f6091d1
> Author: Al Viro <viro@zeniv.linux.org.uk>
> Date:   Thu May 3 10:14:29 2012 -0400
>
>     ocfs: simplify symlink handling
>    
>
> commit 408bd629badbd4353b238ab6f58001529b274d73
> Author: Al Viro <viro@zeniv.linux.org.uk>
> Date:   Thu May 3 09:34:20 2012 -0400
>
>     get rid of pointless allocations and copying in ecryptfs_follow_link()
>    
>     switch to generic_readlink(), while we are at it
>
>
> commit 28fe3c1963b0bafa56ec92df1987828090151d87
> Author: Al Viro <viro@zeniv.linux.org.uk>
> Date:   Tue Apr 17 16:41:13 2012 -0400
>
>     hpfs: assorted endianness annotations
>
> commit 77ee26e44c28823a29bc09091950544566ae7cea
> Author: Al Viro <viro@zeniv.linux.org.uk>
> Date:   Tue Apr 17 16:26:46 2012 -0400
>
>     hpfs: annotate ea
>
> commit 46287aa652fa8ea1edac41817ddc63332495ffc3
> Author: Al Viro <viro@zeniv.linux.org.uk>
> Date:   Tue Apr 17 16:20:49 2012 -0400
>
>     hpfs: annotate struct hpfs_dirent
>
> commit 6ce2bbba5266c1dd5c27dd8af1887ed8ca564919
> Author: Al Viro <viro@zeniv.linux.org.uk>
> Date:   Tue Apr 17 16:11:25 2012 -0400
>
>     hpfs: annotate struct anode
>
> commit 2b9f1cc29ba0e56089fe04501ec6d3b49eee3c3e
> Author: Al Viro <viro@zeniv.linux.org.uk>
> Date:   Tue Apr 17 16:09:25 2012 -0400
>
>     hpfs: annotate struct fnode
>
> commit ddc19e6e04c1131a48f5b9a25aa433bbd8430cdd
> Author: Al Viro <viro@zeniv.linux.org.uk>
> Date:   Tue Apr 17 15:59:35 2012 -0400
>
>     hpfs: annotate btree nodes, get rid of bitfields mess
>    
> commit 39413c6046de282a92739110cfafb8f1e862680d
> Author: Al Viro <viro@zeniv.linux.org.uk>
> Date:   Tue Apr 17 15:32:22 2012 -0400
>
>     hpfs: annotate struct dnode
>
>
> After that bisection start to be quite hard : i have compile error or
> unbootable kernel or unrelated OOPS
>
>
> For the record the BUG that i'm chasing is this one :
>
>
>
> [  934.933390] kernel BUG at fs/buffer.c:2882!
> [  934.933401] invalid opcode: 0000 [#1] SMP
> [  934.933412] CPU 0
> [  934.933419] Modules linked in: drbd lru_cache
> [  934.933429]
> [  934.933437] Pid: 4301, comm: deliver Not tainted 3.4.0+ #16 HP
> ProLiant ML150 G3/ML150 G3
> [  934.933461] RIP: 0010:[<ffffffff8117a252>]  [<ffffffff8117a252>]
> submit_bh+0x112/0x120
> [  934.933477] RSP: 0018:ffff880076c07b38  EFLAGS: 00010246
> [  934.933489] RAX: 4000000000800004 RBX: ffffea0001d82dc0 RCX:
> 00000003ffffffff
> [  934.933504] RDX: 0000000000000001 RSI: ffffea0001d82dc0 RDI:
> 0000000000000000
> [  934.933519] RBP: 0000000000000000 R08: 0000000000000000 R09:
> ffffffff8133b0a0
> [  934.933534] R10: dead000000200200 R11: dead000000100100 R12:
> 0000000004cc4789
> [  934.933549] R13: 00000003ffffffff R14: 0000000000000000 R15:
> 0000000000000000
> [  934.933564] FS:  00007fdb397ff700(0000) GS:ffff88007fc00000(0000)
> knlGS:0000000000000000
> [  934.933581] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [  934.933593] CR2: 00007fe29e575024 CR3: 00000000766b3000 CR4:
> 00000000000007f0
> [  934.933608] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
> 0000000000000000
> [  934.933677] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
> 0000000000000400
> [  934.933750] Process deliver (pid: 4301, threadinfo ffff880076c06000,
> task ffff88007d10a4e0)
> [  934.935047] Stack:
> [  934.935113]  ffffea0001d82dc0 0000000000000001 0000000004cc4789
> ffffffff8131bad6
> [  934.935236]  000000001725db78 ffffffff81ca03c8 ffff88007d10ab48
> ffff880076c07c10
> [  934.935355]  0000000076c06010 0000000100000000 ffff8800172269b0
> ffff88000d2a4000
> [  934.935471] Call Trace:
> [  934.935534]  [<ffffffff8131bad6>] ? ocfs2_read_blocks+0x176/0x6c0
> [  934.935600]  [<ffffffff8133b0a0>] ? ocfs2_find_actor+0x120/0x120
> [  934.935665]  [<ffffffff8133aac7>] ? ocfs2_read_inode_block_full+0x37/0x60
> [  934.935734]  [<ffffffff8138ab1f>] ?
> ocfs2_fast_symlink_readpage+0x2f/0x160
> [  934.935803]  [<ffffffff8110fff5>] ? do_read_cache_page+0x85/0x180
> [  934.935868]  [<ffffffff8138aaf0>] ? ocfs2_fill_super+0x2500/0x2500
> [  934.935934]  [<ffffffff81110149>] ? read_cache_page+0x9/0x20
> [  934.935999]  [<ffffffff811565e5>] ? page_getlink+0x25/0x80
> [  934.936062]  [<ffffffff8115665b>] ? page_follow_link_light+0x1b/0x30
> [  934.936128]  [<ffffffff8115ab27>] ? path_lookupat+0x327/0x6c0
> [  934.936193]  [<ffffffff8115aeec>] ? do_path_lookup+0x2c/0xc0
> [  934.936258]  [<ffffffff8133b501>] ? ocfs2_inode_revalidate+0x71/0x160
> [  934.936325]  [<ffffffff8113210a>] ? handle_pte_fault+0x8a/0x920
> [  934.936390]  [<ffffffff8115bd8c>] ? user_path_at_empty+0x5c/0xb0
> [  934.936457]  [<ffffffff81066fca>] ? do_page_fault+0x1aa/0x3c0
> [  934.936523]  [<ffffffff81150ded>] ? cp_new_stat+0x10d/0x120
> [  934.936588]  [<ffffffff81150ee1>] ? vfs_fstatat+0x41/0x80
> [  934.936653]  [<ffffffff8115101f>] ? sys_newstat+0x1f/0x50
> [  934.936720]  [<ffffffff817cb8a2>] ? system_call_fastpath+0x16/0x1b
>
>
> Does it gives some better information ? Do you haev some ideas of thinks
> that could be tested ?
>
>
> Vincent
>
>
>
>

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