I got this oops on a 2.5.44 system (single CPU, preempt enabled, as was
slab debugging) when unmounting a full ramfs partition.
This is 100% reproduceable for me; mount ramfs, run dbench in that mount
point, the system will run out of ram as dbench fills up the ramfs
partition, and kernel will OOM kill dbench and your shell. Login again,
and unmount the ramfs partition, oops.
VFS: Busy inodes after unmount. Self-destruct in 5 seconds. Have a nice
day...
Unable to handle kernel paging request at virtual address 5a5a5a6e
printing eip:
c014afa0
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0060:[<c014afa0>] Not tainted
EFLAGS: 00010206
EIP is at iput+0x24/0x68
eax: 5a5a5a5a ebx: c97fa67c ecx: c137c000 edx: c137dd68
esi: c10c3258 edi: c137de18 ebp: c97fa700 esp: c137ddb4
ds: 0068 es: 0068 ss: 0068
Process kswapd0 (pid: 5, threadinfo=c137c000 task=c13d38c0)
Stack: c97fa67c c01332f4 c97fa67c c97fa700 c137de00 c137c000 c10c3258 c012a108
c10c3258 c137de00 c137de98 c137c000 c1177690 c033b75c 00000001 00000000
00000000 c1146b98 c115ce98 00000000 00000000 00000000 00000000 00000000
Call Trace:
[<c01332f4>] generic_vm_writeback+0x38/0x40
[<c012a108>] shrink_list+0x23c/0x448
[<c0129a8d>] __pagevec_release+0x11/0x1c
[<c012a953>] refill_inactive_zone+0x363/0x4ec
[<c0129a8d>] __pagevec_release+0x11/0x1c
[<c012a4c2>] shrink_cache+0x1ae/0x2dc
[<c012ab48>] shrink_zone+0x6c/0x74
[<c012ad4e>] balance_pgdat+0x8e/0xec
[<c012aea7>] kswapd+0xfb/0x105
[<c012adac>] kswapd+0x0/0x105
[<c0110c04>] autoremove_wake_function+0x0/0x38
[<c0110c04>] autoremove_wake_function+0x0/0x38
[<c0105499>] kernel_thread_helper+0x5/0xc
Code: 8b 40 14 85 c0 74 06 53 ff d0 83 c4 04 68 b0 c6 33 c0 8d 43
--
Burton Windle [email protected]
Linux: the "grim reaper of innocent orphaned children."
from /usr/src/linux-2.4.18/init/main.c:461