Kalin KOZHUHAROV wrote:
> Alex Riesen wrote:
>
>>On 12/14/05, Kalin KOZHUHAROV <[email protected]> wrote:
>>
>>
>>>Now that I get a repetitive freeze, is there anything to debug the problem?
>>>I guess, the point when kernel is still responsive to keyboard, but I cannot login.
>>
>>
>>try to connect a serial console to it and press Alt+SysRq+t
>
>
> Thank you for the suggestio, Alex.
>
> I was always trying to avoid the serial console till now (it just seems difficult, and I DO know it
> is not), and didn't even bother with the netconsole...
It is, I as have to go and buy a null modem cable... will do it.
> So until now, here is an oops, the first I saw in a few months, captured by my camera and then
> digitally enhanced: http://linux.tar.bz/reports/oopses/char/2.6.14.3-K01_char__oops1.jpg
>
> The OCRed/handwritten text ( http://linux.tar.bz/reports/oopses/char/2.6.14.3-K01_char__oops1.txt )
> says:
>
> Call trace:
> SCSI device sda: 145226112 512-byte hdwr sectors (74356 MB)
> SCSI device sda: drive cache: write back
> [<c01ec22f>] kobject_put+0x1f/0x30
> [<c028c8fd>] scsi_end_request+0xdd/0xf0
> [<c028ccae>] scsi_io_completion+0x26e/0x570
> [<c011b623>] load_balance_newidle+0x43/0x110
> [<c028d255>] scsi_generic_done+0x35/0x50
> [<c02873ee>] scsi_finish_command+0x8e/0xd0
> [<c0318dea>] schedule+0x4da/0xd50
> [<c0318e1d>] schedule+0x50d/0xd50
> [<c028728f>] scsi_sortirq+0xdf/0x160
> [<c0125836>] __do_softirq+0xd6/0xf0
> [<c0125885>] do_softirq+0x35/0x40
> [<c0125e35>] ksoftirqd+0x95/0xe0
> [<c0125da0>] ksoftirqd+0x0/0xe0
> [<c0135b9a>] kthread+0xba/0xc0
> [<c0135ae0>] kthread+0x0/0xc0
> [<c0101245>] kernel_thread_helper+0x5/0x10
> Code: e1 08 00 89 44 24 04 89 1c 24 e8 27 b0 ff ff eb a5 90 8d 74 26 00 55 57 56
> 53 83 ec 08 8b 44 24 1c 89 44 24 04 8b 80 ec 00 00 00 <8b> 38 f6 80 79 01 00 00
> 80 0f 85 98 00 00 00 8b 47 2c 8d 6f 20
> <0>Kernel panic - not syncing: Fatal exception in interrupt
>
> Unfortunately everything was frozen (KBD too), so I couldn't scroll up to see the beginning. As you
> may guess, it was not written to the disk.
>
> The oops happened on boot (after a hard power-off) and is probbably related to the SATA system.
All right, the above started to be reproducible, about once every 3 boots: the system freezes when
tries to initialize the ata sybsystem. (still don't have cable for the serial console, sorry)
> The .config is available at http://linux.tar.bz/reports/oopses/char/2.6.14.3-K01_char.config
Now this is 2.6.14.4 and the new config is:
http://linux.tar.bz/reports/oopses/char/2.6.14.4-K01_char.config
I added another 250GB SATA HDD and changed the PSU, but it does not seem to be related for that bug.
Will try to tweak the IDE parameters in BIOS.
Kalin.
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