blk-7 fails to boot (against 2.4.0-test10)
Hi Jens.
I wanted to try out blk-7 to see if it cured the abysmal I/O performance
on 2.4.0-test10, but it won't boot on my system. The last message I see
is the banner of the SCSI host adapter init (it found the card) but it
never actually lists the devices on the host... weird place to crash actually. I tried it twice, and waited about a minute each time for it to
make progress.
In other words, this appears:
(scsi0) <Adaptec AHA-294X Ultra2 SCSI host adapter> found at PCI 0/11/0 (scsi0) Wide Channel, SCSI ID=7, 32/255 SCBs
(scsi0) Downloading sequencer code... 392 instructions downloaded scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.2.1/5.2.0
<Adaptec AHA-294X Ultra2 SCSI host adapter>
But it never makes it to:
(scsi0:0:0:0) Synchronous at 80.0 Mbyte/sec, offset 15.
Vendor: SEAGATE Model: ST39102LW Rev: 0006
Type: Direct-Access ANSI SCSI revision: 02
(scsi0:0:2:0) Synchronous at 80.0 Mbyte/sec, offset 31.
Vendor: IBM Model: DNES-318350W Rev: SA30
Type: Direct-Access ANSI SCSI revision: 03
Does this ring a bell? I tried using SYSRQ and it shows the 'current' as kapmd-idled and the showPc shows the PC at c01108ff -> apm_bios_call_simple. Hmm.
I'll try any subsequent patch you can offer.
My system is a single processor Athlon 700, 256mb ram, 2.4.0-test10 plus blk-7.
David Mansfield
P.S. I added the #define ELEVATOR_MERGE_HOLE 3 like someone else mentioned, and the patch applied cleanly except filemap.c which was offset -20 lines.
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Quoted 8 lines · David Mansfield
Hi Jens.
I wanted to try out blk-7 to see if it cured the abysmal I/O performance
on 2.4.0-test10, but it won't boot on my system. The last message I see
is the banner of the SCSI host adapter init (it found the card) but it
Yes, known bug. The two scsi queueing functions need to plug the device, it's fixed here. I don't have a clean blk-7 tree atm, but I'll put up a blk-8 in an hour or so with that fix and others.
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* Jens Axboe <[email protected]> * SuSE Labs - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] Please read the FAQ at http://www.tux.org/lkml/
Quoted 4 lines · David Mansfield
Hi Jens.
I wanted to try out blk-7 to see if it cured the abysmal I/O performance on 2.4.0-test10, but it won't boot on my system.
Could you try blk-8?
*.kernel.org/pub/linux/kernel/people/axboe/patches/2.4.0-test10/blk-8.bz2
It also has other fixes over blk-7 (saves the linear back scan when a buffer can't be merged, simple aging of requests in queue, and more "fair" accouting of merges)
Signature · 6 lines
* Jens Axboe <[email protected]> * SuSE Labs - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] Please read the FAQ at http://www.tux.org/lkml/