On Mon, Sep 17, 2012 at 06:53:16PM -0400, Banerjee, Debabrata wrote: > Hello, we're seeing this bug quite often (50 per day over 1500 machines, > however the parent process executes in a few seconds every 4 hours). The > process should be merging a freshly untar'd directory with ~8500 files in > it via rename, where most of the files stay the same (but are clobbered by > rename), on ext2. I'm attempting to isolate the problem in a clean > environment. > > [229978.861098] ------------[ cut here ]------------ > [229978.862013] kernel BUG at fs/dcache.c:2105! > [229978.862013] invalid opcode: 0000 [#1] SMP > [229978.873082] CPU 1 > > [229978.873082] > [229978.873082] Pid: 11817, comm: xxxxxxxx. Not tainted 3.0.30-3.0.1-amd64 What's 3.0.30-3.0.1? Is this reproduceable with an upstream kernel? --b. > #1 > [229978.873082] RIP: 0010:[<ffffffff81139ab2>] [<ffffffff81139ab2>] > __d_rehash+0x52/0x60 > [229978.873082] RSP: 0018:ffff8800f743dce8 EFLAGS: 00010286 > [229978.873082] RAX: 018721dffc2c27d2 RBX: ffff8800f48ac6c0 RCX: > 0000000000000013 > [229978.873082] RDX: 000013f61bc3e0c4 RSI: ffffc900002fa850 RDI: > ffff8800f48ac6c0 > [229978.873082] RBP: ffff8800f743dce8 R08: ffffea0002438868 R09: > ffffea0002438868 > [229978.873082] R10: ffff8800e39f6fec R11: 0000000000000246 R12: > ffff8800234e3500 > [229978.873082] R13: ffff8800234e3590 R14: ffff8800f48ac750 R15: > ffff880076557408 > [229978.873082] FS: 00007fdd33ef96d0(0000) GS:ffff88007fd00000(0063) > knlGS:00000000f75588c0 > [229978.873082] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 > [229978.873082] CR2: 00000000f72ed000 CR3: 000000007b884000 CR4: > 00000000000006e0 > [229978.873082] DR0: 0000000000000000 DR1: 0000000000000000 DR2: > 0000000000000000 > [229978.873082] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: > 0000000000000400 > [229978.873082] Process xxxxxxxx. (pid: 11817, threadinfo > ffff8800f743c000, task ffff8800f2bda8c0) > [229978.873082] Stack: > [229978.873082] ffff8800f743dd18 ffffffff8113aa6b ffff8800234e3500 > ffff8800f48ac6c0 > [229978.873082] ffff8800f48ac6c0 ffff8800641bda28 ffff8800f743dd38 > ffffffff8113ac3a > [229978.873082] ffff8800234e3500 0000000000000000 ffff8800f743ddb8 > ffffffff8113224b > [229978.873082] Call Trace: > [229978.873082] [<ffffffff8113aa6b>] __d_move+0xbb/0x250 > [229978.873082] [<ffffffff8113ac3a>] d_move+0x3a/0x60 > [229978.873082] [<ffffffff8113224b>] vfs_rename+0x3cb/0x3e0 > [229978.873082] [<ffffffff81130119>] ? __lookup_hash+0xd9/0x160 > [229978.873082] [<ffffffff811345a3>] sys_renameat+0x243/0x260 > [229978.873082] [<ffffffff81169ceb>] ? compat_filldir64+0xab/0xe0 > [229978.873082] [<ffffffff811a72b8>] ? ext2_readdir+0x228/0x2e0 > [229978.873082] [<ffffffff81169c40>] ? compat_filldir+0x100/0x100 > [229978.873082] [<ffffffff81169c40>] ? compat_filldir+0x100/0x100 > [229978.873082] [<ffffffff81136f0a>] ? vfs_readdir+0x9a/0xd0 > [229978.873082] [<ffffffff811345db>] sys_rename+0x1b/0x20 > [229978.873082] [<ffffffff814bd42c>] cstar_dispatch+0x7/0x32 > [229978.873082] Code: e0 fe 48 85 c0 48 89 47 08 74 04 48 89 50 08 48 89 > 72 08 48 83 ca 01 48 89 16 0f ba 36 00 c9 c3 f3 90 48 8b 06 a8 01 75 f7 eb > be <0f> 0b eb fe 66 2e 0f 1f 84 00 00 00 00 00 > 55 48 89 e5 66 66 66 > [229978.873082] RIP [<ffffffff81139ab2>] __d_rehash+0x52/0x60 > [229978.873082] RSP <ffff8800f743dce8> > [229979.157156] ---[ end trace f2460e13ceb17f51 ]--- > > -- > To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
