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SubjectRe: new aic7xxx oopses with AHA2940
* Jeff Garzik schrieb am 27.05.01 um 04:36 Uhr:
>
> I'm curious what happens with the attached patch?
>
> It adds some debugging checks which will halt your kernel with "BUG! at
> <file>:line"...
>
[patch]

I got your PM. How did you make it?

I updated ksymoops to 2.4.1, applied the patch and traced again, but
I think there is no difference now, is it?


ksymoops 2.4.1 on i686 2.4.5. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.5/ (default)
-m /usr/src/linux/System.map (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.

Warning (compare_maps): ksyms_base symbol __VERSIONED_SYMBOL(shmem_file_setup) not found in System.map. Ignoring ksyms_base entry
May 27 12:30:47 homer kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000000
May 27 12:30:47 homer kernel: e0a7b3a7
May 27 12:30:47 homer kernel: *pde = 00000000
May 27 12:30:47 homer kernel: Oops: 0000
May 27 12:30:47 homer kernel: CPU: 0
May 27 12:30:47 homer kernel: EIP: 0010:[<e0a7b3a7>]
Using defaults from ksymoops -t elf32-i386 -a i386
May 27 12:30:47 homer kernel: EFLAGS: 00010096
May 27 12:30:47 homer kernel: eax: 00000041 ebx: 00000000 ecx: 00000000 edx: dd570c00
May 27 12:30:47 homer kernel: esi: 00000000 edi: 000000ff ebp: dd570c00 esp: dd221cbc
May 27 12:30:47 homer kernel: ds: 0018 es: 0018 ss: 0018
May 27 12:30:47 homer kernel: Process modprobe (pid: 474, stackpage=dd221000)
May 27 12:30:47 homer kernel: Stack: 00000000 00000000 000000ff dd570c00 41000357 e0a7b7cd dd570c00 00000000
May 27 12:30:47 homer kernel: ffffffff 00000041 ffffffff 000000ff 00000000 00000041 00000000 dd570c00
May 27 12:30:47 homer kernel: dd570c00 00000001 00000001 00000001 00000001 00000001 00000000 00000001
May 27 12:30:47 homer kernel: Call Trace: [<e0a7b7cd>] [<e0a7c256>] [<c0234ce3>] [<e0a7c84d>] [<e0a70990>] [<e0a812e9>] [<e0a7dcd7>]
May 27 12:30:47 homer kernel: [<c0230000>] [<e0a6f93e>] [<e0a78855>] [<e0a6f891>] [<e0a6f8b0>] [<e0a852e0>] [<c011b3c2>] [<c01d6fdc>]
May 27 12:30:47 homer kernel: [<e0a85360>] [<e0a853c0>] [<c01d7054>] [<e0a853c0>] [<e0a852e0>] [<e0a7287a>] [<e0a6f74e>] [<e0a852e0>]
May 27 12:30:47 homer kernel: [<e0a6f068>] [<c01bf7d9>] [<e0a852e0>] [<e0a852e0>] [<e0a6f068>] [<e0a7cccc>] [<e0a6f000>] [<e0a6f068>]
May 27 12:30:47 homer kernel: [<c01c003d>] [<e0a852e0>] [<e0a6f000>] [<e0a726d6>] [<e0a852e0>] [<c011541d>] [<e0a68000>] [<e0a6f060>]
May 27 12:30:47 homer kernel: [<c0106b9b>]
May 27 12:30:47 homer kernel: Code: 8b 06 8b 7c 24 20 8b 6c 24 28 0f b6 40 19 f6 82 f0 00 00 00

>>EIP; e0a7b3a7 <[aic7xxx]ahc_match_scb+17/f0> <=====
Trace; e0a7b7cd <[aic7xxx]ahc_search_qinfifo+14d/6b0>
Trace; e0a7c256 <[aic7xxx]ahc_abort_scbs+66/300>
Trace; c0234ce3 <__delay+13/30>
Trace; e0a7c84d <[aic7xxx]ahc_reset_channel+25d/370>
Trace; e0a70990 <[aic7xxx]ahc_linux_isr+0/270>
Trace; e0a812e9 <[aic7xxx].rodata.start+c89/157c>
Trace; e0a7dcd7 <[aic7xxx]ahc_pci_config+497/4b0>
Trace; c0230000 <rpc_new_task+f0/170>
Trace; e0a6f93e <[aic7xxx]ahc_linux_initialize_scsi_bus+3e/1d0>
Trace; e0a78855 <[aic7xxx]ahc_set_name+15/30>
Trace; e0a6f891 <[aic7xxx]ahc_linux_register_host+111/150>
Trace; e0a6f8b0 <[aic7xxx]ahc_linux_register_host+130/150>
Trace; e0a852e0 <[aic7xxx]driver_template+0/6c>
Trace; c011b3c2 <timer_bh+222/260>
Trace; c01d6fdc <pci_announce_device+1c/50>
Trace; e0a85360 <[aic7xxx]ahc_linux_pci_id_table+0/60>
Trace; e0a853c0 <[aic7xxx]aic7xxx_pci_driver+0/20>
Trace; c01d7054 <pci_register_driver+44/60>
Trace; e0a853c0 <[aic7xxx]aic7xxx_pci_driver+0/20>
Trace; e0a852e0 <[aic7xxx]driver_template+0/6c>
Trace; e0a7287a <[aic7xxx]ahc_linux_pci_probe+a/30>
Trace; e0a6f74e <[aic7xxx]ahc_linux_detect+5e/90>
Trace; e0a852e0 <[aic7xxx]driver_template+0/6c>
Trace; e0a6f068 <[aic7xxx].text.start+8/a0>
Trace; c01bf7d9 <scsi_register_host+49/2d0>
Trace; e0a852e0 <[aic7xxx]driver_template+0/6c>
Trace; e0a852e0 <[aic7xxx]driver_template+0/6c>
Trace; e0a6f068 <[aic7xxx].text.start+8/a0>
Trace; e0a7cccc <[aic7xxx]ahc_check_patch+c/80>
Trace; e0a6f000 <[eepro100]__module_parm_multicast_filter_limit+3124/3184>
Trace; e0a6f068 <[aic7xxx].text.start+8/a0>
Trace; c01c003d <scsi_register_module+2d/60>
Trace; e0a852e0 <[aic7xxx]driver_template+0/6c>
Trace; e0a6f000 <[eepro100]__module_parm_multicast_filter_limit+3124/3184>
Trace; e0a726d6 <[aic7xxx]init_this_scsi_driver+16/40>
Trace; e0a852e0 <[aic7xxx]driver_template+0/6c>
Trace; c011541d <sys_init_module+4fd/5a0>
Trace; e0a68000 <[emu10k1].data.end+23f9/2459>
Trace; e0a6f060 <[aic7xxx]ahc_print_path+0/0>
Trace; c0106b9b <system_call+33/38>
Code; e0a7b3a7 <[aic7xxx]ahc_match_scb+17/f0>
00000000 <_EIP>:
Code; e0a7b3a7 <[aic7xxx]ahc_match_scb+17/f0> <=====
0: 8b 06 mov (%esi),%eax <=====
Code; e0a7b3a9 <[aic7xxx]ahc_match_scb+19/f0>
2: 8b 7c 24 20 mov 0x20(%esp,1),%edi
Code; e0a7b3ad <[aic7xxx]ahc_match_scb+1d/f0>
6: 8b 6c 24 28 mov 0x28(%esp,1),%ebp
Code; e0a7b3b1 <[aic7xxx]ahc_match_scb+21/f0>
a: 0f b6 40 19 movzbl 0x19(%eax),%eax
Code; e0a7b3b5 <[aic7xxx]ahc_match_scb+25/f0>
e: f6 82 f0 00 00 00 00 testb $0x0,0xf0(%edx)


2 warnings issued. Results may not be reliable.


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