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SubjectKernel 2.2.9 memory problem
Hi,

I'm running 2.2.9 (with a redhat 5.2 distribution) on a dual PII machine
with 512Mbytes of RAM and got the following kernel Oops while running two
processes that, between them, used pretty much 512Mbytes of RAM (the
machine also has 1Gig of swap).

The machine was still running after this Oops with a load average of 3.00
(!!), although the process list didn't indicate any processes active, the
two jobs had just gone idle, but kswapd had gone into a zombie state,
which seemed odd.

Here's the relevant entries from the syslog (I'm also running autofs for
user home spaces as you will see from the syslog).

Any thoughts as to what could be causing this?

Mark

---
May 25 04:02:08 nc8 kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000005
May 25 04:02:08 nc8 kernel: current->tss.cr3 = 1a4bd000, pr3 = 1a4bd000
May 25 04:02:08 nc8 kernel: *pde = 00000000
May 25 04:02:08 nc8 kernel: Oops: 0002
May 25 04:02:08 nc8 kernel: CPU: 1
May 25 04:02:08 nc8 kernel: EIP: 0010:[<c0131188>]
May 25 04:02:08 nc8 kernel: EFLAGS: 00010202
May 25 04:02:08 nc8 kernel: eax: c3f6d780 ebx: de4b51c8 ecx: de4b5260 edx: 00000005
May 25 04:02:08 nc8 kernel: esi: 00000005 edi: de4b5140 ebp: 00000000 esp: c9807ea4
May 25 04:02:08 nc8 kernel: ds: 0018 es: 0018 ss: 0018
May 25 04:02:08 nc8 kernel: Process find (pid: 9048, process nr: 54, stackpage=c9807000)
May 25 04:02:08 nc8 kernel: Stack: c022fe1c c025f9f8 00000000 00000004 000015bf 000002db de4b51c0 c0132275
May 25 04:02:08 nc8 kernel: 00000d2b 00000000 00000000 c01322da 00001006 00000000 c025f9f8 c022fe1c
May 25 04:02:08 nc8 kernel: c025f9f8 c025f9f0 c013266a d60eddc0 c0132679 00000000 c025f9f8 0000089b
May 25 04:02:08 nc8 kernel: Call Trace: [<c0132275>] [<c01322da>] [<c013266a>] [<c0132679>] [<c0132750>] [<c013d7b0>] [<c012c987>]
May 25 04:02:08 nc8 kernel: [<c012cb60>] [<c012cc48>] [<c012ad9e>] [<c0109014>] [<c010002b>]
May 25 04:02:08 nc8 kernel: Code: 89 02 89 09 89 49 04 eb ba 8d 76 00 85 db 74 20 8b 7b 48 89
May 25 08:26:29 nc8 kernel: eth0: Transmit timed out: status 0050 0000 at 253195180/253195180 command 000ca000.
May 25 08:26:29 nc8 kernel: eth0: Trying to restart the transmitter...
May 25 11:47:31 nc8 rpc.mountd[296]: NFS mount of / attempted from 192.168.1.2
May 25 11:47:31 nc8 rpc.mountd[296]: / has been mounted by 192.168.1.2
May 25 13:52:54 nc8 kernel: eth0: Transmit timed out: status 0050 0000 at 334767082/334767082 command 000ca000.
May 25 13:52:54 nc8 kernel: eth0: Trying to restart the transmitter...
May 25 15:41:14 nc8 kernel: eth0: Transmit timed out: status 0050 0000 at 347827975/347827975 command 000ca000.
May 25 15:41:14 nc8 kernel: eth0: Trying to restart the transmitter...
May 25 19:43:41 nc8 kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000005
May 25 19:43:41 nc8 kernel: current->tss.cr3 = 00101000, pr3 = 00101000
May 25 19:43:41 nc8 kernel: *pde = 00000000
May 25 19:43:41 nc8 kernel: Oops: 0002
May 25 19:43:41 nc8 kernel: CPU: 1
May 25 19:43:41 nc8 kernel: EIP: 0010:[<c013123e>]
May 25 19:43:41 nc8 kernel: EFLAGS: 00010206
May 25 19:43:41 nc8 kernel: eax: c022fdf4 ebx: c3f6d780 ecx: c3f6dfe0 edx: 00000005
May 25 19:43:41 nc8 kernel: esi: c3f6d6e0 edi: d85f7100 ebp: 00000a1b esp: c0091fac
May 25 19:43:41 nc8 kernel: ds: 0018 es: 0018 ss: 0018
May 25 19:43:41 nc8 kernel: Process kswapd (pid: 4, process nr: 5, stackpage=c0091000)
May 25 19:43:41 nc8 kernel: Stack: 00000030 c0090000 c0131551 00000be2 c01222d8 00000005 00000030 00000000
May 25 19:43:41 nc8 kernel: c01f534e c00902b9 c0090000 c012234b 00000030 00000f00 c0005fb0 c0784e28
May 25 19:43:41 nc8 kernel: 00000e00 c0107a9f 00000000 00000f00 c0249fc0
May 25 19:43:41 nc8 kernel: Call Trace: [<c0131551>] [<c01222d8>] [<c01f534e>] [<c012234b>] [<c0107a9f>]
May 25 19:43:41 nc8 kernel: Code: 89 02 89 1b 89 5b 04 8d 73 e0 83 7b e0 00 0f 85 a0 00 00 00
May 25 19:47:44 nc8 kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000005
May 25 19:47:44 nc8 kernel: current->tss.cr3 = 1f33e000, pr3 = 1f33e000
May 25 19:47:44 nc8 kernel: *pde = 00000000
May 25 19:47:44 nc8 kernel: Oops: 0000
May 25 19:47:44 nc8 kernel: CPU: 0
May 25 19:47:44 nc8 kernel: EIP: 0010:[<c0131236>]
May 25 19:47:44 nc8 kernel: EFLAGS: 00010207
May 25 19:47:44 nc8 kernel: eax: 0000099b ebx: 00000005 ecx: 00000006 edx: 00000005
May 25 19:47:44 nc8 kernel: esi: 00000006 edi: 00000015 ebp: 0000099b esp: df313ed8
May 25 19:47:44 nc8 kernel: ds: 0018 es: 0018 ss: 0018
May 25 19:47:44 nc8 kernel: Process xntpd (pid: 273, process nr: 19, stackpage=df313000)
May 25 19:47:44 nc8 kernel: Stack: 00000015 df312000 c0131551 0000099b c01222d8 00000006 00000015 00000001
May 25 19:47:44 nc8 kernel: 00000015 00000015 00000026 c01223f7 00000015 def95f54 00000007 c0122bdc
May 25 19:47:44 nc8 kernel: 00000015 def95f54 00000007 def95f58 00000026 df312000 df312000 fffffff4
May 25 19:47:44 nc8 kernel: Call Trace: [<c0131551>] [<c01222d8>] [<c01223f7>] [<c0122bdc>] [<c012ef3d>] [<c012f522>] [<c0109014>]
May 25 19:47:44 nc8 kernel: Code: 8b 03 8b 53 04 89 50 04 89 02 89 1b 89 5b 04 8d 73 e0 83 7b
May 26 09:12:29 nc8 automount[430]: attempting to mount entry /homes/mjh
May 26 09:12:29 nc8 kernel: Unable to handle kernel paging request at virtual address ffffffed
May 26 09:12:29 nc8 kernel: current->tss.cr3 = 02022000, pr3 = 02022000
May 26 09:12:29 nc8 kernel: *pde = 0027b067
May 26 09:12:29 nc8 kernel: *pte = 00000000
May 26 09:12:29 nc8 kernel: Oops: 0000
May 26 09:12:29 nc8 kernel: CPU: 1
May 26 09:12:29 nc8 kernel: EIP: 0010:[<c0131162>]
May 26 09:12:29 nc8 kernel: EFLAGS: 00010206
May 26 09:12:29 nc8 kernel: eax: 00000001 ebx: 000008b0 ecx: d60edcb8 edx: d77f6448
May 26 09:12:29 nc8 kernel: esi: 00000005 edi: c022fdf4 ebp: 00000000 esp: c1fcbef8
May 26 09:12:29 nc8 kernel: ds: 0018 es: 0018 ss: 0018
May 26 09:12:29 nc8 kernel: Process mount (pid: 24956, process nr: 56, stackpage=c1fcb000)
May 26 09:12:29 nc8 kernel: Stack: 00000008 c0272700 c1fcbf14 00000004 00001cd8 00000000 c022fdf4 c0132275
May 26 09:12:29 nc8 kernel: 000008b0 00000000 00000002 c01322da 00001006 00000002 00000002 00000008
May 26 09:12:29 nc8 kernel: c0272700 00000015 00000000 de6a3dc0 c01325a9 00000002 00000002 c016446f
May 26 09:12:29 nc8 automount[24955]: mount(nfs): nfs: mount failure server:/homes2/mjh on /homes/mjh
May 26 09:12:29 nc8 kernel: Call Trace: [<c0132275>] [<c01322da>] [<c01325a9>] [<c016446f>] [<c0164a91>] [<c0164b1d>] [<c0165a00>]
May 26 09:12:29 nc8 kernel: [<c0109014>]
May 26 09:12:29 nc8 kernel: Code: 8b 5e e8 89 f1 8d 46 e0 c7 44 24 10 00 00 00 00 8b 76 04 83
May 26 09:12:29 nc8 automount[430]: attempting to mount entry /homes/mjh
May 26 09:18:41 nc8 rpc.mountd[296]: NFS mount of / attempted from 192.168.1.7
May 26 09:18:41 nc8 rpc.mountd[296]: / has been mounted by 192.168.1.7
May 26 09:19:29 nc8 automount[430]: attempting to mount entry /homes/mark


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