http://bugzilla.kernel.org/show_bug.cgi?id=11960 Summary: Oops in ext4_mb_poll_new_transaction Product: File System Version: 2.5 KernelVersion: 2.6.27 Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: ext4 AssignedTo: fs_ext4@xxxxxxxxxxxxxxxxxxxx ReportedBy: kelly@xxxxxxxxxxxx Distribution: Debian Etch Hardware Environment: Supermicro server, quad core intel xeon cpu, 4 gigs of ram, 8 gigs of swap, two 3ware 9690SA raid cards+BBU. Software Environment: Debian etch 64-bit os with these drivers/firmware: 3ware 9000 Storage Controller device driver for Linux v2.26.02.011. 3w-9xxx: scsi1: Firmware FH9X 4.06.00.004, BIOS BE9X 4.05.00.015, Ports: 128. Kernel checked out from ext4 git repository -stable branch. Problem Description: Kernel produced oops trying to mount an ext4 filesystem after a hard reset was performed on the machine. fsck.ext4 repaired the filesystem and it then mounted cleanly. Steps to reproduce: Have not tried to reproduce. System was under I/O load from multiple rsync processes reading from the network at around a total of 25-50mbps when it was hard reset. System rebooted but did not mount the filesystem, instead producing the oops listed. EXT4-fs: barriers enabled kjournald2 starting. Commit interval 5 seconds EXT4 FS on sdb1, internal journal on sdb1:8 ext4_orphan_cleanup: deleting unreferenced inode 394924522 BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 IP: [<ffffffff802f91c8>] ext4_mb_poll_new_transaction+0x6e/0xe3 PGD 1291db067 PUD 129fce067 PMD 0 Oops: 0002 [1] SMP CPU 5 Pid: 4884, comm: mount Not tainted 2.6.27 #1 RIP: 0010:[<ffffffff802f91c8>] [<ffffffff802f91c8>] ext4_mb_poll_new_transaction+0x6e/0xe3 RSP: 0018:ffff880128a6d888 EFLAGS: 00010207 RAX: ffff8801288ee1e0 RBX: ffff8801288ec000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801288ee1d0 RBP: ffff8801229193d8 R08: 0000000000000001 R09: ffff880128a6d9a0 R10: 000000005e2829ed R11: 0000000000000002 R12: ffff8801291b2000 R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000001 FS: 00007f8f321546d0(0000) GS:ffff88012fb080c0(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000008 CR3: 000000012915c000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process mount (pid: 4884, threadinfo ffff880128a6c000, task ffff88012ec4d410) Stack: 000000005e2829ed ffff8801291b2000 ffff8801229107e0 ffffffff802fa3ba ffff88012e60fce0 ffff880128a6d9a0 000000012e615800 ffff8801229107e0 ffff8801229193d8 ffffffff802792ab 0000000000000050 0000000000000292 Call Trace: [<ffffffff802fa3ba>] ? ext4_mb_free_blocks+0x46/0x5b1 [<ffffffff802792ab>] ? cache_alloc_refill+0xeb/0x1e6 [<ffffffff803073bc>] ? insert_revoke_hash+0x89/0xad [<ffffffff802ded31>] ? ext4_free_blocks+0x71/0xc5 [<ffffffff802f3c6e>] ? ext4_ext_truncate+0x3fd/0x860 [<ffffffff80303f9a>] ? do_get_write_access+0x38a/0x3d0 [<ffffffff802e4a81>] ? ext4_truncate+0x67/0x4e2 [<ffffffff80304cda>] ? jbd2_journal_dirty_metadata+0xcc/0xe3 [<ffffffff802f4e9a>] ? __ext4_journal_dirty_metadata+0x1e/0x46 [<ffffffff802e228a>] ? ext4_mark_iloc_dirty+0x45e/0x4e3 [<ffffffff802e291f>] ? ext4_mark_inode_dirty+0x159/0x16c [<ffffffff802e6d8c>] ? ext4_delete_inode+0x103/0x1c2 [<ffffffff802e6c89>] ? ext4_delete_inode+0x0/0x1c2 [<ffffffff8028fa9a>] ? generic_delete_inode+0xb0/0x124 [<ffffffff802eee27>] ? ext4_fill_super+0x1850/0x1b53 [<ffffffff8027ee98>] ? set_bdev_super+0x0/0xf [<ffffffff802ed5d7>] ? ext4_fill_super+0x0/0x1b53 [<ffffffff8027feff>] ? get_sb_bdev+0xf8/0x145 [<ffffffff8027f92a>] ? vfs_kern_mount+0x93/0x11b [<ffffffff8027fa05>] ? do_kern_mount+0x43/0xdc [<ffffffff80294293>] ? do_new_mount+0x5b/0x94 [<ffffffff80294489>] ? do_mount+0x1bd/0x1ea [<ffffffff80291f82>] ? copy_mount_options+0xcc/0x12b [<ffffffff80294540>] ? sys_mount+0x8a/0xda [<ffffffff8020bdcb>] ? system_call_fastpath+0x16/0x1b Code: 8b b3 d0 21 00 00 48 8d bb d0 21 00 00 48 39 fe 74 2f 48 8b 57 08 48 8b 8b e0 21 00 00 48 8d 83 e0 21 048 89 0a 48 89 51 08 48 89 bb d0 21 00 00 48 89 7f RIP [<ffffffff802f91c8>] ext4_mb_poll_new_transaction+0x6e/0xe3 RSP <ffff880128a6d888> CR2: 0000000000000008 ---[ end trace 72945378fb356467 ]--- -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
