Messages in this thread | | | Date | Mon, 25 Oct 2004 16:36:31 -0700 | From | "Randy.Dunlap" <> | Subject | Re: 2.6.9-mm1 |
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Andrew Morton wrote: > "Randy.Dunlap" <rddunlap@osdl.org> wrote: > >>Andrew Morton wrote: >> >>>"Randy.Dunlap" <rddunlap@osdl.org> wrote: >>> >>> >>>>I'm trying to spend time on kexec++ this week, but this little BUG >>>>keeps getting in the way. Has it already been reported/fixed? >>>> >>>>kernel BUG at arch/i386/mm/highmem.c:42! >>> >>> >>>oops, we did it again. >>> >>>--- 25/drivers/ide/ide-taskfile.c~ide_pio_sector-kmap-fix Mon Oct 25 15:54:35 2004 >>>+++ 25-akpm/drivers/ide/ide-taskfile.c Mon Oct 25 15:54:48 2004 >>>@@ -304,7 +304,7 @@ static void ide_pio_sector(ide_drive_t * >>> else >>> taskfile_input_data(drive, buf, SECTOR_WORDS); >>> >>>- kunmap_atomic(page, KM_BIO_SRC_IRQ); >>>+ kunmap_atomic(buf, KM_BIO_SRC_IRQ); >>> #ifdef CONFIG_HIGHMEM >>> local_irq_restore(flags); >>> #endif >>>_ >> >>Yes, that gets further. :( >>Maybe I'll just (try) apply the kexec patch to a vanilla kernel. > > > I doubt if it'll help much. It looks like IDE PIO got badly broken. > That's something we have to fix - could you work with Bart on it please?
Sure. Bart?
> How come your disks are running in PIO mode anyway?
No idea.
>>Unable to handle kernel paging request at virtual address fffea000 >> printing eip: >>c02c8e4d >>*pde = 0064b067 >>*pte = 00000000 >>Oops: 0002 [#1] >>SMP DEBUG_PAGEALLOC >>Modules linked in: >>CPU: 0 >>EIP: 0060:[<c02c8e4d>] Not tainted VLI >>EFLAGS: 00010006 (2.6.9-mm1) >>EIP is at ide_insw+0xd/0x20 >>eax: 000001f0 ebx: c05ee7ec ecx: 00000100 edx: 000001f0 >>esi: c05ee7ec edi: fffea000 ebp: c056fe80 esp: c056fe7c >>ds: 007b es: 007b ss: 0068 >>Process swapper (pid: 0, threadinfo=c056e000 task=c0486b80) >>Stack: c05ee740 c056fea0 c02c93b8 000001f0 fffea000 00000100 c05ee7ec >>00000080 >> fffea000 c056fec0 c02ccf06 c05ee7ec fffea000 00000080 00000000 >>00000000 >> c05ee740 c056feec c02cd62b c05ee7ec fffea000 00000080 00000000 >>fffea000 >>Call Trace: >> [<c0107eff>] show_stack+0xaf/0xc0 >> [<c010808d>] show_registers+0x15d/0x1e0 >> [<c01082a6>] die+0x106/0x190 >> [<c011c707>] do_page_fault+0x517/0x6a6 >> [<c0107b4d>] error_code+0x2d/0x38 >> [<c02c93b8>] ata_input_data+0x98/0xa0 >> [<c02ccf06>] taskfile_input_data+0x26/0x50 >> [<c02cd62b>] ide_pio_sector+0xcb/0xf0 >> [<c02cd892>] task_in_intr+0xe2/0x100 >> [<c02c8c16>] ide_intr+0xb6/0x150 >> [<c0142cd8>] handle_IRQ_event+0x38/0x70 >> [<c0142df2>] __do_IRQ+0xe2/0x150 >> [<c0109606>] do_IRQ+0x36/0x60 >> [<c0107a30>] common_interrupt+0x18/0x20 >> [<c01050f1>] cpu_idle+0x31/0x50 >> [<c05709bf>] start_kernel+0x15f/0x180 >> [<c0100211>] 0xc0100211 >>Code: e5 8b 55 08 ec 0f b6 c0 5d c3 8d 74 26 00 55 89 e5 8b 55 08 66 >>ed 0f b7 c >> <0>Kernel panic - not syncing: Fatal exception in interrupt >> <0>Dumping messages in 0 seconds : last chance for Alt-SysRq...
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