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Subject2.4.0-test9-pre7 oops (Unable to handle kernel paging request)
I tried booting 2.4.0-test9-pre7 today on my work machine for the first time,
and it hung up when one of my user programs was started. The process
"receiver_d" uses sockets and shared memory and has worked without problems
for years with many kernel versions up through 2.4.0-test9-pre5.

I did manage to get this program running after several attempts, so the oops
doesn't occur every time. Here is a snippet from /var/log/messages:

kernel: Unable to handle kernel paging request at virtual address d0b88ffc
kernel: printing eip:
kernel: c0190c30
kernel: *pde = 01454063
kernel: *pte = 00000000
kernel: Oops: 0000
kernel: CPU: 0
kernel: EIP: 0010:[sys_shmat+204/636]
kernel: EFLAGS: 00010246
kernel: eax: d0b89000 ebx: ffffffff ecx: 000001b6 edx: ffffffff
kernel: esi: 00000000 edi: 00000000 ebp: 00000002 esp: cb50ff64
kernel: ds: 0018 es: 0018 ss: 0018
kernel: Process receiver_d (pid: 824, stackpage=cb50f000)
kernel: Stack: ffffffff 00000000 00000000 bffff90c 00000003 00000001 00003800 00000000
kernel: 00000000 00000000 c010f65d ffffffff 00000000 00000000 cb50ffb4 cb50e000
kernel: bffff90c 00000000 bffff910 00000003 00000022 c010a818 cb50ffc4 c010a6ef
kernel: Call Trace: [sys_ipc+361/524] [error_code+44/52] [system_call+51/56]
kernel: Code: 8b 04 90 85 c0 75 07 c6 05 64 49 2f c0 01 85 c0 0f 84 8a 01
kernel: NET: 32 messages suppressed.

I won't be at my work email until Monday, but can be reached at if anyone wants to cc any further questions.

Steven Cole
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