Messages in this thread | | | From | Ivan Gyurdiev <> | Subject | 2.5.31 SCSI emulation and cd burner....severe filesystem corruption | Date | Sun, 11 Aug 2002 10:46:44 -0400 |
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Yes, I'm out of my mind... I'm aware of that... But that's just me... I'm a forward looking person so I just have to run the latest 2.5 kernel :)
Here's my story...you decide where and what the problem is... There might be several unrelated problems, but there's a minimum of one, since I have a kernel oops to support it. ========================================
I purchased a brand new Toshiba 8x8x8x32 burner and decided to test it out on my 2.5.31 kernel. I've been running 2.5 kernels for several weeks with my IDE IBM drive and no problems at all.
So I configured the drive with SCSI emulation and the SCSI-CDROM and SCSI-generic support, disabling IDE ATAPI support. I configured xcdroast, and tried to burn an image. The result was a drive that kept powering up and shutting down, with the yellow light on most of the time... X froze, keyboard froze, mouse froze... Sysrq - sync, unmount, reboot. Tried it again, same thing. This time fsck refused to work on machine powerup. It froze. I powered up my backup system and did fsck on /. The system showed clean. Forced fsck detected massive filesystem corruption erasing important libraries which took a while to recover.
Some people just don't learn, though. So I fixed all the important stuff, and tried it again, this time with DMA for CD disabled, since someone hinted me that it could cause problems. Exactly the same thing happend. I managed to kill X somehow and CTRL-ALT-DEL while my burner was still trying to do something. The result was a kernel oops. After another forced fsck I lost most symlinks in /etc, kernel sources and parts of glibc... when I fixed some of it, I did: ksymoops /var/log/messages to get this: (this is the oops on attempted machine shutdown while the burner was trying to burn a CD) ======================================================= I should mention this machine is a uniprocessor Athlon XP 1600+ with local APIC enabled and I/O apic disabled. I use acpi. =======================================================
>>EIP; c0113b7f <smp_apic_timer_interrupt+f/100> <=====
>>eax; c032c000 <init_thread_union+0/2000> >>ebx; d3ebd800 <END_OF_CODE+13b146c4/????> >>ecx; 00f5cae7 Before first symbol >>esi; d3ebd8ac <END_OF_CODE+13b14770/????> >>edi; 00004008 Before first symbol >>ebp; c032df5c <init_thread_union+1f5c/2000> >>esp; c032df50 <init_thread_union+1f50/2000>
Trace; c0109402 <apic_timer_interrupt+1a/20> Trace; c01c8447 <acpi_processor_idle+177/230> Trace; c0107170 <default_idle+0/30> Trace; c01c82d0 <acpi_processor_idle+0/230> Trace; c0107170 <default_idle+0/30> Trace; c0107211 <cpu_idle+31/40> Trace; c0105000 <_stext+0/0>
Code; c0113b7f <smp_apic_timer_interrupt+f/100> 00000000 <_EIP>: Code; c0113b7f <smp_apic_timer_interrupt+f/100> <===== 0: c7 05 b0 e0 ff ff 00 movl $0x0,0xffffe0b0 <===== Code; c0113b86 <smp_apic_timer_interrupt+16/100> 7: 00 00 00 Code; c0113b89 <smp_apic_timer_interrupt+19/100> a: ff 05 00 91 37 c0 incl 0xc0379100 Code; c0113b8f <smp_apic_timer_interrupt+1f/100> 10: 81 40 10 00 00 00 00 addl $0x0,0x10(%eax)
Aug 13 01:36:47 cobra kernel: <0>Kernel panic: Attempted to kill the idle task!
2 warnings issued. Results may not be reliable.
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