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 #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
