Re: 2.6.9-rc1-mm5

William Lee Irwin III
2004-09-15T11:36:59Z

On Mon, Sep 13, 2004 at 01:50:03AM -0700, Andrew Morton wrote:
> +cfq-iosched-v2.patch
> Major revamp of the CFQ IO scheduler

While editing some files while booted into 2.6.9-rc1-mm5:

# ----------- [cut here ] --------- [please bite here ] ---------
Kernel BUG at cfq_iosched:1359
invalid operand: 0000 [1] SMP
CPU 0
Modules linked in: st sr_mod floppy usbserial parport_pc lp parport snd_seq_oss snd_seq_device snd_seq_midi_event snd_seq snd_pcm_oss snd_mixer_oss snd_ioctl32 thermal processor fan button battery snd_intel8x0 snd_ac97_codec snd_pcm snd_timer ipv6 ac snd soundcore snd_page_alloc af_packet joydev usbhid ehci_hcd e1000 uhci_hcd usbcore hw_random evdev dm_mod ext3 jbd aic79xx ata_piix libata sd_mod scsi_mod
Pid: 9615, comm: cc1 Not tainted 2.6.9-rc1-mm5
RIP: 0010:[<ffffffff80290ab6>] <ffffffff80290ab6>{cfq_put_request+166}
RSP: 0000:ffffffff804c8638 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 000001017e2c3b80 RCX: 00000000000049f2
RDX: 0000000000000001 RSI: 000001017e75cd10 RDI: 000001000b5d57c0
RBP: 000001017e75cd10 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 000001016d1b3db0
R13: 000001017d142c08 R14: 000001017fff1400 R15: 0000000000000001
FS: 0000002a9588d6e0(0000) GS:ffffffff8055c880(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000548000 CR3: 0000000000101000 CR4: 00000000000006e0
Process cc1 (pid: 9615, threadinfo 000001011f720000, task 000001012d4897e0)
Stack: 0000000000001000 000001016d1b3db0 000001017e2c3b80 0000000000000001
0000000000000001 000001017e2c3b80 0000000000000200 ffffffff8028527f
0000010163320300 ffffffff80287bfb
Call Trace:<IRQ> <ffffffff8028527f>{elv_put_request+15} <ffffffff80287bfb>{__blk_put_request+139}
<ffffffff80287d33>{end_that_request_last+243} <ffffffffa0006178>{:scsi_mod:scsi_end_request+200}
<ffffffffa00063f0>{:scsi_mod:scsi_io_completion+576}
<ffffffffa0000506>{:scsi_mod:scsi_finish_command+214}
<ffffffffa0000e4a>{:scsi_mod:scsi_softirq+234} <ffffffff8013df61>{__do_softirq+113}
<ffffffff8013e015>{do_softirq+53} <ffffffff80113f1f>{do_IRQ+335}
<ffffffff80110c97>{ret_from_intr+0} <EOI>

Code: 0f 0b 26 9b 38 80 ff ff ff ff 4f 05 ff c8 41 89 44 95 58 0f
RIP <ffffffff80290ab6>{cfq_put_request+166} RSP <ffffffff804c8638>
<0>Kernel panic - not syncing: Aiee, killing interrupt handler!

-- wli