Hangs with SW RAID5 and 2l.4.21-pre3aa1 patch

Hangs with SW RAID5 and 2l.4.21-pre3aa1 patch

[tester7 A.]

Motherboard: Intel SDS2
CPU: P-III 1.4
RAM: 1024MB
IDE Controller: 3Ware 7500-8

I am trying to test S/W Raid5 with 2.4.21-pre3aa1 patch
After making the raidtab and doing 'mkraid' and mount xfs FS on /dev/md1,
it was keeep showing something about 'buffer size changed from 4096 --> 512' 
and back and forth and hangs.
After reset, it would not boot due to Raid failure.

After booting with 2.4.20 kernel and remove the raidtab and boot to the 
2.4.21-pre3aa1 again and repeat the same, 'mkraid' halts and ps -aux shows 
raid5d and raid5syncd is in RW and DW, respectively.

Is it known bug in 2.4.21-pre33aa1 kernel?

Thanks in advance.


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Re: Hangs with SW RAID5 and 2l.4.21-pre3aa1 patch

[Samuel Flory]

tester7 A. wrote:

>
> Motherboard: Intel SDS2
> CPU: P-III 1.4
> RAM: 1024MB
> IDE Controller: 3Ware 7500-8
>
> I am trying to test S/W Raid5 with 2.4.21-pre3aa1 patch
> After making the raidtab and doing 'mkraid' and mount xfs FS on /dev/md1,
> it was keeep showing something about 'buffer size changed from 4096 
> --> 512' and back and forth and hangs.
> After reset, it would not boot due to Raid failure.
>
> After booting with 2.4.20 kernel and remove the raidtab and boot to 
> the 2.4.21-pre3aa1 again and repeat the same, 'mkraid' halts and ps 
> -aux shows raid5d and raid5syncd is in RW and DW, respectively.


  Does a 2.4.21-pre3 kernel work?

>
> Is it known bug in 2.4.21-pre33aa1 kernel?
>
>

  I've seen this as well when I attempted to upgrade a system with 2 
raid0, and 1 raid1 devices.  It was a Intel se7500wv, 4G memory, and two 
3ware  7500-8.  The system works just fine with old aa's, and redhat's 
2.4.18-19 kernel.  I didn't have much time to spend with it, and I was 
waiting to test 2.4.21-pre3 before reporting the bug.

-- 
There is no such thing as obsolete hardware.
Merely hardware that other people don't want.
(The Second Rule of Hardware Acquisition)
Sam Flory  <sflory@rackable.com>