>Hey,
>
>Found this in dmesg today...
>Default RH7.2 kernel
>
>I have no idea how/what triggered it, so I doubt trying with a later
>kernel to see if it happens again will help (it came after almost 10 days
>of uptime). Just posting this on the off chance it may be an undiscovered
>bug.
>
>ksymoops 2.4.1 on i686 2.4.7-10. Options used
> -V (default)
> -k /proc/ksyms (default)
> -l /proc/modules (default)
> -o /lib/modules/2.4.7-10/ (default)
> -m /boot/System.map-2.4.7-10 (default)
>
>Warning: You did not tell me where to find symbol information. I will
>assume that the log matches the kernel and modules that are running
>right now and I'll use the default options above for symbol resolution.
>If the current kernel and/or modules do not match the log, you can get
>more accurate output by telling me the kernel version and where to find
>map, modules, ksyms etc. ksymoops -h explains the options.
>
>Error (expand_objects): cannot stat(/lib/ext3.o) for ext3
>Error (expand_objects): cannot stat(/lib/jbd.o) for jbd
>Warning (compare_maps): mismatch on symbol partition_name , ksyms_base
>says c01b30d0, System.map says c0154d30. Ignoring ksyms_base entryWarning
>(compare_maps): mismatch on symbol tone_control , emu10k1 says d7aede94,
>/lib/modules/2.4.7-10/kernel/drivers/sound/emu10k1/emu10k1.o says
>d7aed0c0. Ignoring
>/lib/modules/2.4.7-10/kernel/drivers/sound/emu10k1/emu10k1.o entry
>Warning (compare_maps): mismatch on symbol nlmsvc_grace_period , lockd
>says d2980bd4, /lib/modules/2.4.7-10/kernel/fs/lockd/lockd.o says
>d298003c. Ignoring /lib/modules/2.4.7-10/kernel/fs/lockd/lockd.o entry
>Warning (compare_maps): mismatch on symbol nlmsvc_ops , lockd says
>d2980bd0, /lib/modules/2.4.7-10/kernel/fs/lockd/lockd.o says d2980038.
>Ignoring /lib/modules/2.4.7-10/kernel/fs/lockd/lockd.o entry
>Warning (compare_maps): mismatch on symbol nlmsvc_timeout , lockd says
>d2980bd8, /lib/modules/2.4.7-10/kernel/fs/lockd/lockd.o says d2980040.
>Ignoring /lib/modules/2.4.7-10/kernel/fs/lockd/lockd.o entry
>Warning (compare_maps): mismatch on symbol nfs_debug , sunrpc says
>d2972d40, /lib/modules/2.4.7-10/kernel/net/sunrpc/sunrpc.o says d2972a00.
>Ignoring /lib/modules/2.4.7-10/kernel/net/sunrpc/sunrpc.o entry
>Warning (compare_maps): mismatch on symbol nfsd_debug , sunrpc says
>d2972d44, /lib/modules/2.4.7-10/kernel/net/sunrpc/sunrpc.o says d2972a04.
>Ignoring /lib/modules/2.4.7-10/kernel/net/sunrpc/sunrpc.o entry
>Warning (compare_maps): mismatch on symbol nlm_debug , sunrpc says
>d2972d48, /lib/modules/2.4.7-10/kernel/net/sunrpc/sunrpc.o says d2972a08.
>Ignoring /lib/modules/2.4.7-10/kernel/net/sunrpc/sunrpc.o entry
>Warning (compare_maps): mismatch on symbol rpc_debug , sunrpc says
>d2972d3c, /lib/modules/2.4.7-10/kernel/net/sunrpc/sunrpc.o says d29729fc.
>Ignoring /lib/modules/2.4.7-10/kernel/net/sunrpc/sunrpc.o entry
>Warning (compare_maps): mismatch on symbol rpc_garbage_args , sunrpc says
>d2972d1c, /lib/modules/2.4.7-10/kernel/net/sunrpc/sunrpc.o says d29729dc.
>Ignoring /lib/modules/2.4.7-10/kernel/net/sunrpc/sunrpc.o entry
>Warning (compare_maps): mismatch on symbol rpc_success , sunrpc says
>d2972d0c, /lib/modules/2.4.7-10/kernel/net/sunrpc/sunrpc.o says d29729cc.
>Ignoring /lib/modules/2.4.7-10/kernel/net/sunrpc/sunrpc.o entry
>Warning (compare_maps): mismatch on symbol rpc_system_err , sunrpc says
>d2972d20, /lib/modules/2.4.7-10/kernel/net/sunrpc/sunrpc.o says d29729e0.
>Ignoring /lib/modules/2.4.7-10/kernel/net/sunrpc/sunrpc.o entry
>Warning (compare_maps): mismatch on symbol xdr_one , sunrpc says
>d2972d04, /lib/modules/2.4.7-10/kernel/net/sunrpc/sunrpc.o says d29729c4.
>Ignoring /lib/modules/2.4.7-10/kernel/net/sunrpc/sunrpc.o entry
>Warning (compare_maps): mismatch on symbol xdr_two , sunrpc says
>d2972d08, /lib/modules/2.4.7-10/kernel/net/sunrpc/sunrpc.o says d29729c8.
>Ignoring /lib/modules/2.4.7-10/kernel/net/sunrpc/sunrpc.o entry
>Warning (compare_maps): mismatch on symbol xdr_zero , sunrpc says
>d2972d00, /lib/modules/2.4.7-10/kernel/net/sunrpc/sunrpc.o says d29729c0.
>Ignoring /lib/modules/2.4.7-10/kernel/net/sunrpc/sunrpc.o entry
>Warning (compare_maps): mismatch on symbol usb_devfs_handle , usbcore
>says d285ba00, /lib/modules/2.4.7-10/kernel/drivers/usb/usbcore.o says
>d285b520. Ignoring /lib/modules/2.4.7-10/kernel/drivers/usb/usbcore.o
>entry
>Warning (map_ksym_to_module): cannot match loaded module ext3 to a unique
>module object. Trace may not be reliable.
>Unable to handle kernel NULL pointer dereference at virtual address
>00000000
>c0113f15
>*pde = 00000000
>Oops: 0002
>CPU: 0
>EIP: 0010:[<c0113f15>]
>Using defaults from ksymoops -t elf32-i386 -a i386
>EFLAGS: 00013246
>eax: 00000000 ebx: cac3bf8c ecx: cac3a000 edx: 00000000
>esi: 049cafc6 edi: 00000005 ebp: cac3bfb4 esp: cac3bf88
>ds: 0018 es: 0018 ss: 0018
>Process kreiserfsd (pid: 301, stackpage=cac3b000)
>Stack: cac3bf8c 00000000 00000000 049cafc6 cac3a000 c0113d40 c02aec20
>00000018
> 00000018 d2899108 00000286 cac3bfd8 c0114581 00000000 cac3a000
>d2899108
> d2899108 00000700 ce8f3e20 cea40400 00004000 d288ee33 00000018
>00000018
>Call Trace: [<c0113d40>] [<d2899108>] [<c0114581>] [<d2899108>]
>[<d2899108>]
> [<d288ee33>] [<c010570d>] [<c0105716>] [<d288ed80>]
>Code: 00 00 00 c7 45 e8 00 80 25 c0 8b 55 dc c7 45 e0 18 fc ff ff
>
>>>EIP; c0113f15 <schedule+c5/3d0> <=====
>>>
>Trace; c0113d40 <process_timeout+0/50>
>Trace; d2899108 <[reiserfs]reiserfs_commit_thread_wait+4/c>
>Trace; c0114581 <interruptible_sleep_on_timeout+41/60>
>Trace; d2899108 <[reiserfs]reiserfs_commit_thread_wait+4/c>
>Trace; d2899108 <[reiserfs]reiserfs_commit_thread_wait+4/c>
>Trace; d288ee33 <[reiserfs]reiserfs_journal_commit_thread+b3/e0>
>Trace; c010570d <kernel_thread+1d/30>
>Trace; c0105716 <kernel_thread+26/30>
>Trace; d288ed80 <[reiserfs]reiserfs_journal_commit_thread+0/e0>
>Code; c0113f15 <schedule+c5/3d0>
>00000000 <_EIP>:
>Code; c0113f15 <schedule+c5/3d0> <=====
> 0: 00 00 add %al,(%eax) <=====
>Code; c0113f17 <schedule+c7/3d0>
> 2: 00 c7 add %al,%bh
>Code; c0113f19 <schedule+c9/3d0>
> 4: 45 inc %ebp
>Code; c0113f1a <schedule+ca/3d0>
> 5: e8 00 80 25 c0 call c025800a <_EIP+0xc025800a>
>8036bf1f Before first symbol
>Code; c0113f1f <schedule+cf/3d0>
> a: 8b 55 dc mov 0xffffffdc(%ebp),%edx
>Code; c0113f22 <schedule+d2/3d0>
> d: c7 45 e0 18 fc ff ff movl $0xfffffc18,0xffffffe0(%ebp)
>
>
>18 warnings and 2 errors issued. Results may not be reliable.
>
>thanks,
>
> / Brett
>
>-
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>
Please upgrade to a recent linus kernel. I don't know what went into
RedHat 7.2, but secondhand reports are that reiserfs is not stable in
that kernel.
Hans
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