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SubjectOopses in 2.2.12-pre7
Date
This is a 4-way SMP machine, 2 Gigs of memory, AMI megaraid controller.

We've been seeing these oopses under 2.2.10-ac12 and under 2.2.12-pre7.
They start slowly, until you see more and more of them, eventually
the complete machine hangs.

I can't quite see what the reason of these oopses is. The stack traces
don't make that much sense to me. Does this look like a hardware
problem (memory?) or is this a kernel problem ?

Thanks for any insights ..

Aug 17 15:51:24 beast kernel: klogd 1.3-3#32, log source = /proc/kmsg started.
Aug 17 15:51:24 beast kernel: Inspecting /boot/System.map-2.2.12
Aug 17 15:51:24 beast kernel: Loaded 5833 symbols from /boot/System.map-2.2.12.
Aug 17 15:51:24 beast kernel: Symbols match kernel version 2.2.12.
Aug 17 15:51:24 beast kernel: Loaded 139 symbols from 7 modules.
Aug 17 15:51:24 beast kernel: Linux version 2.2.12 (root@beast) (gcc version 2.7
.2.3) #1 SMP Tue Aug 17 15:44:22 CEST 1999
Aug 17 15:51:24 beast kernel: Warning only 1984MB will be used.
Aug 17 15:51:24 beast kernel: Intel MultiProcessor Specification v1.1
Aug 17 15:51:24 beast kernel: IMCR and PIC compatibility mode.
Aug 17 15:51:24 beast kernel: OEM ID: AMI Product ID: MEGAPLEX APIC at:
0xFEE00000
Aug 17 15:51:24 beast kernel: Processor #0 Pentium(tm) Pro APIC version 17
Aug 17 15:51:24 beast kernel: Processor #1 Pentium(tm) Pro APIC version 17
Aug 17 15:51:24 beast kernel: Processor #2 Pentium(tm) Pro APIC version 17
Aug 17 15:51:24 beast kernel: Processor #3 Pentium(tm) Pro APIC version 17
Aug 17 15:51:24 beast kernel: I/O APIC #4 Version 17 at 0xFEC00000.
Aug 17 15:51:24 beast kernel: I/O APIC #5 Version 17 at 0xFEC01000.
Aug 17 15:51:24 beast kernel: Warning: Multiple IO-APICs not yet supported.
Aug 17 15:51:24 beast kernel: Warning: switching to non APIC mode.
Aug 17 15:51:24 beast kernel: Processors: 4

[ etc, etc, boot up messages ]

Aug 17 17:26:12 beast kernel: Unable to handle kernel paging request at virtual
address 5cad1000
Aug 17 17:26:12 beast kernel: current->tss.cr3 = 35c8c000, %cr3 = 35c8c000
Aug 17 17:26:12 beast kernel: *pde = 00000000
Aug 17 17:26:12 beast kernel: Oops: 0000
Aug 17 17:26:12 beast kernel: CPU: 2
Aug 17 17:26:12 beast kernel: EIP: 0010:[brw_page+469/956]
Aug 17 17:26:12 beast kernel: EFLAGS: 00010246
Aug 17 17:26:12 beast kernel: eax: 00000009 ebx: 00001000 ecx: 00000400 ed
x: dc97a720
Aug 17 17:26:12 beast kernel: esi: 5cad1000 edi: e466a000 ebp: 00000400 es
p: 9ae23e8c
Aug 17 17:26:12 beast kernel: ds: 0018 es: 0018 ss: 0018
Aug 17 17:26:12 beast kernel: Process isamchk (pid: 657, process nr: 71, stackpa
ge=9ae23000)
Aug 17 17:26:12 beast kernel: Stack: 00000000 f75a1ed0 e450ad40 dc838a20 0000080
6 00000000 e450ad40 dc830806
Aug 17 17:26:12 beast kernel: dc97a720 0034b56c 8013dedd dc838a20 9ae23f0
0 0001e9a9 00000001 f75a1ed0
Aug 17 17:26:12 beast kernel: 00001000 8012a027 00000000 811ca090 0000080
6 9ae23f04 00001000 00000001
Aug 17 17:26:12 beast kernel: Call Trace: [ext2_bmap+217/588] [generic_readpage+
127/140] [do_generic_file_read+1122/1540] [do_generic_file_read+1372/1540] [gene
ric_file_read+100/128] [file_read_actor+0/80] [smp_local_timer_interrupt+188/308
]
Aug 17 17:26:12 beast kernel: [sys_pread+222/272] [system_call+52/56] [st
artup_32+43/164]
Aug 17 17:26:12 beast kernel: Code: f3 a5 f6 c3 02 74 02 66 a5 f6 c3 01 74 01 a4
eb 5a 89 f6 8b
Aug 17 17:59:46 beast kernel: Unable to handle kernel paging request at virtual
address 5cad1000
Aug 17 17:59:46 beast kernel: current->tss.cr3 = 17833000, %cr3 = 17833000
Aug 17 17:59:46 beast kernel: *pde = 00000000
Aug 17 17:59:46 beast kernel: Oops: 0002
Aug 17 17:59:46 beast kernel: CPU: 0
Aug 17 17:59:46 beast kernel: EIP: 0010:[sprintf+3643/3700]
Aug 17 17:59:46 beast kernel: EFLAGS: 00010246
Aug 17 17:59:46 beast kernel: eax: 00000000 ebx: 00000000 ecx: 00000400 ed
x: 0806fa30
Aug 17 17:59:46 beast kernel: esi: 0806f630 edi: 5cad1000 ebp: 00000400 es
p: 86e8bec0
Aug 17 17:59:46 beast kernel: ds: 0018 es: 0018 ss: 0018
Aug 17 17:59:46 beast kernel: Process isamchk (pid: 815, process nr: 71, stackpa
ge=86e8b000)
Aug 17 17:59:46 beast kernel: Stack: f7a281b4 00000400 0806f630 8013ca3e 5cad100
0 0806f630 00000400 f7a24960
Aug 17 17:59:46 beast kernel: 8013c670 00000400 0806f630 00000400 0000000
0 00000000 00000000 fbb42600
Aug 17 17:59:46 beast kernel: 00000000 0001e9a9 1e9a9000 f75a1ed0 dc97a72
0 ffffffe4 86e8bf24 00000000
Aug 17 17:59:46 beast kernel: Call Trace: [ext2_file_write+974/1540] [ext2_file_
write+0/1540] [timer_interrupt+137/276] [handle_IRQ_event+85/140] [update_wall_t
ime+14/76] [timer_bh+237/920] [sys_pwrite+244/312]
Aug 17 17:59:46 beast kernel: [system_call+52/56] [startup_32+43/164]
Aug 17 17:59:46 beast kernel: Code: f3 aa 58 59 e9 6e e6 ff ff ba f2 ff ff ff e9
89 e6 ff ff ba

Mike.
--
... somehow I have a feeling the hurting hasn't even begun yet
-- Bill, "The Terrible Thunderlizards"

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