On Thu, 29 Jun 2006 23:45:41 +1200
Reuben Farrelly <reuben-lkml@xxxxxxxx> wrote:
On 29/06/2006 8:36 p.m., Andrew Morton wrote:ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.17/2.6.17-mm4/This at the end of shutdown:
- The RAID patches have been dropped due to testing failures in -mm3.
- The SCSI Attached Storage tree (git-sas.patch) has been restored.
Sending all processes the TERM signal...
Sending all processes the KILL signal...
Saving random seed:
Syncing hardware clock to system time
Turning off swap:
Unmounting file systems: ----------- [cut here ] --------- [please bite here ] ---------
Kernel BUG at fs/dcache.c:600
invalid opcode: 0000 [1] SMP
last sysfs file: /block/fd0/dev
CPU 0
Modules linked in: hidp rfcomm l2cap bluetooth ipv6 ip_gre binfmt_misc ide_cd i2c_i801 cdrom serio_raw ide_disk
Pid: 4216, comm: umount Not tainted 2.6.17-mm4 #1
RIP: 0010:[<ffffffff802c4f91>] [<ffffffff802c4f91>] shrink_dcache_for_umount_subtree+0x151/0x260
RSP: 0018:ffff810034bc7db8 EFLAGS: 00010202
RAX: 0000000000000001 RBX: ffff81003e8ce928 RCX: ffff810001df1a00
RDX: 00000000000000b8 RSI: ffffffff8025e9b1 RDI: ffff81002542eba8
RBP: ffff810034bc7dd8 R08: 0000000000000000 R09: ffff81003dd1e970
R10: ffff81003dd1e970 R11: ffff81003dd1e960 R12: ffff81003e8ce928
R13: ffff81002542ebb8 R14: ffff81003f6466c0 R15: 0000000000000000
FS: 00002b032cff3750(0000) GS:ffffffff80686000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00002b032cbc6000 CR3: 00000000284ac000 CR4: 00000000000006e0
Process umount (pid: 4216, threadinfo ffff810034bc6000, task ffff810037f8d750)
Stack: ffff81003e1d5c00 ffff81003e1d5c00 ffffffff80584960 ffff810034bc7ec8
ffff810034bc7df8 ffffffff802c5324 00000000000001e0 ffff81003e1d5c00
ffff810034bc7e28 ffffffff802bdd64 ffff81003f6466c0 ffff810037d6bcc0
Call Trace:
[<ffffffff802c5324>] shrink_dcache_for_umount+0x37/0x63
[<ffffffff802bdd64>] generic_shutdown_super+0x24/0x14f
[<ffffffff802bdeb5>] kill_block_super+0x26/0x3b
[<ffffffff802bdf7f>] deactivate_super+0x4a/0x6b
[<ffffffff8022e08f>] mntput_no_expire+0x56/0x8e
[<ffffffff802334f1>] path_release_on_umount+0x1d/0x2c
[<ffffffff802c72b1>] sys_umount+0x251/0x28c
[<ffffffff8022e0db>] fput+0x14/0x19
[<ffffffff80223ae8>] filp_close+0x68/0x76
[<ffffffff8026014a>] system_call+0x7e/0x83
Thanks. Probably
destroy-the-dentries-contributed-by-a-superblock-on-unmounting.patch went
wrong, possibly an interaction between
destroy-the-dentries-contributed-by-a-superblock-on-unmounting.patch and
ro-bind-mounts-*.patch.
If you have time, please:
- Confirm that it is reproducible.
- If it is, test http://www.zip.com.au/~akpm/linux/patches/stuff/rf.bz2. That's a patch against 2.6.17. It's basically -mm4, with
ro-bind-mounts-*.patch removed (and with x86[_64] generic IRQ wired up). If that fails in the same way, we know that
destroy-the-dentries-contributed-by-a-superblock-on-unmounting.patch is
the bad guy.