* Problem with RAID-5 on SuSE 9.1 (cp hangs, high system load, cpu waits)
@ 2004-05-26 15:39 Christoph Zimmerli
2004-05-26 16:04 ` Marc Marais
0 siblings, 1 reply; 6+ messages in thread
From: Christoph Zimmerli @ 2004-05-26 15:39 UTC (permalink / raw)
To: linux-raid
Hi there!
I'm running SuSE 9.1 on my fileserver with 6 hds:
1 40gb IBM system disk on the onboard ide0
5 120gb Maxtor disks, 1 with the system disk on onboard ide0 and 4 on an
Adaptec 1200A.
I configured the 5 120gb disks as software RAID-5 array, using ext3 as fs.
The system itself runs ok like that, but strange things happen, when I start
to copy files onto/from the RAID:
- Copying starts normally
- Copying hangs, no more data is transferred
- The CPU is almost 100% in wait state
- The system load increases steadily
- iowait is huge but the disks are idle
If I react quick, I can kill the cp process, and everything returns to
normality.
But if you wait too long, the process can't be killed anymore. The problem
is, you can't even shutdown the pc, because the system seems to wait for
something.
I then pressed the reset button. When booting, the system reports, it's
recovering the journal of md0, and hangs there. I waited about 15h at max,
but nothing happened. When resetting again, the system came up flawlessly,
and did about 1.5h of RAID-resync.
But when copying again, the same things would happen.
I was able to have the system running for half a week with all the hardware
inside, all disks connected, but each disk mounted as /disk1 etc. with
ext3. I then copied around some gb, but there was no high load or so, and
every cp terminated.
I read in the list, that there were some problems with ext3 as fs, so I
changed the fs to Reiser, but that didn't help.
After these tests I think, that it has to be something with the RAID itself,
or the simultaneous disk access in RAID-mode.
Any ideas about how to solve this problem would be highly appreciated!
Have a nice day!
Christoph
-----------------------------------------------
System Information:
AMD AthlonXP 1800+
512mb RAM
Shuttle AK31
ASUS DVD-ROM
1 IBM IC35L040AVER07-0 (40gb system disk)
5 Maxtor 6Y120L0 (120gb storage disks)
Adaptec 1200A PCI IDE Controller
-----------------------------------------------
/proc/version
Linux version 2.6.4-54.5-default (geeko@buildhost) (gcc version 3.3.3 (SuSE
Linux)) #1 Fri May 7 21:43:10 UTC 2004
-----------------------------------------------
/proc/mdstat:
md0 : active raid5 hdh1[4] hdg1[3] hdd1[2] hdc1[1] hda1[0]
480242688 blocks level 5, 128k chunk, algorithm 2 [5/5] [UUUUU]
unused devices: <none>
-----------------------------------------------
/etc/fstab
/dev/hde3 / ext3 acl,user_xattr 1
1
/dev/hde1 /boot ext3 acl,user_xattr 1
2
/dev/hde4 /var ext3 acl,user_xattr 1
2
/dev/hde2 swap swap pri=42 0
0
devpts /dev/pts devpts mode=0620,gid=5 0
0
proc /proc proc defaults 0
0
usbfs /proc/bus/usb usbfs noauto 0
0
sysfs /sys sysfs noauto 0
0
/dev/dvd /media/dvd subfs
fs=cdfss,ro,procuid,nosuid,nodev,exec,iocharset=utf8 0 0
/dev/fd0 /media/floppy subfs
fs=floppyfss,procuid,nodev,nosuid,sync 0 0
/dev/md0 /storage reiserfs acl,user_xattr
-----------------------------------------------
/proc/dma
4: cascade
-----------------------------------------------
/proc/interrupts
CPU0
0: 11052606 XT-PIC timer
1: 10 XT-PIC i8042
2: 0 XT-PIC cascade
5: 13236 XT-PIC ide0, ide1, eth1, VIA8233
8: 2 XT-PIC rtc
9: 0 XT-PIC acpi
11: 79755 XT-PIC eth0, uhci_hcd, uhci_hcd, uhci_hcd
12: 50 XT-PIC i8042
14: 43472 XT-PIC ide2
15: 7081 XT-PIC ide3
NMI: 0
LOC: 0
ERR: 1
MIS: 0
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Problem with RAID-5 on SuSE 9.1 (cp hangs, high system load, cpu waits)
2004-05-26 15:39 Problem with RAID-5 on SuSE 9.1 (cp hangs, high system load, cpu waits) Christoph Zimmerli
@ 2004-05-26 16:04 ` Marc Marais
2004-05-26 21:08 ` TJ Harrell
0 siblings, 1 reply; 6+ messages in thread
From: Marc Marais @ 2004-05-26 16:04 UTC (permalink / raw)
To: linux-raid
Just a general comment - I may be wrong but this:
> md0 : active raid5 hdh1[4] hdg1[3] hdd1[2] hdc1[1] hda1[0]
> 480242688 blocks level 5, 128k chunk, algorithm 2 [5/5] [UUUUU]
looks like you have two disks on one IDE bus (hdc1 and hdd1 / hdg1 and hdh1)
which isn't a good idea for IDE as, typically, both devices will fail if
there's a problem with one drive on that channel (I think its mentioned in the
s/ware RAID howto).
I have:
md0 : active raid5 hdk1[3] hdi1[2] hdg1[1] hde1[0]
234444288 blocks level 5, 128k chunk, algorithm 2 [4/4] [UUUU]
Each disk is master on its own IDE bus.
I wonder if this is contributing to your problem? I'm no expert on RAID but
are there any IDE related error messages in your logs?
Oh and your motherboard is using a KT266A chipset - I personally won't touch a
VIA chipset since that whole PCI / Soundblaster fiasco (I still have
nightmares). AFAIK the KT266A has PCI issues which have some kind of
workaround in the Linux kernel, however it might be a factor in your situation.
--
---------- Original Message -----------
From: "Christoph Zimmerli" <zeratul@gmx.ch>
To: <linux-raid@vger.kernel.org>
Sent: Wed, 26 May 2004 17:39:43 +0200
Subject: Problem with RAID-5 on SuSE 9.1 (cp hangs, high system load, cpu waits)
> Hi there!
>
> I'm running SuSE 9.1 on my fileserver with 6 hds:
> 1 40gb IBM system disk on the onboard ide0
> 5 120gb Maxtor disks, 1 with the system disk on onboard ide0 and 4
> on an Adaptec 1200A.
>
> I configured the 5 120gb disks as software RAID-5 array, using ext3
> as fs. The system itself runs ok like that, but strange things
> happen, when I start to copy files onto/from the RAID: - Copying
> starts normally - Copying hangs, no more data is transferred - The
> CPU is almost 100% in wait state - The system load increases
> steadily - iowait is huge but the disks are idle
>
> If I react quick, I can kill the cp process, and everything returns
> to normality. But if you wait too long, the process can't be killed
> anymore. The problem is, you can't even shutdown the pc, because the
> system seems to wait for something. I then pressed the reset button.
> When booting, the system reports, it's recovering the journal of md0,
> and hangs there. I waited about 15h at max, but nothing happened.
> When resetting again, the system came up flawlessly, and did about
> 1.5h of RAID-resync. But when copying again, the same things would happen.
>
> I was able to have the system running for half a week with all the hardware
> inside, all disks connected, but each disk mounted as /disk1 etc.
> with ext3. I then copied around some gb, but there was no high load
> or so, and every cp terminated. I read in the list, that there were
> some problems with ext3 as fs, so I changed the fs to Reiser, but
> that didn't help.
>
> After these tests I think, that it has to be something with the RAID
> itself, or the simultaneous disk access in RAID-mode.
>
> Any ideas about how to solve this problem would be highly appreciated!
>
> Have a nice day!
> Christoph
>
> -----------------------------------------------
> System Information:
>
> AMD AthlonXP 1800+
> 512mb RAM
> Shuttle AK31
> ASUS DVD-ROM
> 1 IBM IC35L040AVER07-0 (40gb system disk)
> 5 Maxtor 6Y120L0 (120gb storage disks)
> Adaptec 1200A PCI IDE Controller
>
> -----------------------------------------------
> /proc/version
>
> Linux version 2.6.4-54.5-default (geeko@buildhost) (gcc version
> 3.3.3 (SuSE
> Linux)) #1 Fri May 7 21:43:10 UTC 2004
>
> -----------------------------------------------
> /proc/mdstat:
>
> md0 : active raid5 hdh1[4] hdg1[3] hdd1[2] hdc1[1] hda1[0]
> 480242688 blocks level 5, 128k chunk, algorithm 2 [5/5] [UUUUU]
>
> unused devices: <none>
>
> -----------------------------------------------
> /etc/fstab
>
> /dev/hde3 / ext3 acl,user_xattr
> 1 1 /dev/hde1 /boot ext3 acl,
> user_xattr 1 2 /dev/hde4 /var ext3
> acl,user_xattr 1 2 /dev/hde2 swap
> swap pri=42 0 0 devpts
> /dev/pts devpts mode=0620,gid=5 0 0 proc
> /proc proc defaults 0 0
> usbfs /proc/bus/usb usbfs noauto
> 0 0 sysfs /sys sysfs
> noauto 0 0 /dev/dvd /media/dvd subfs
> fs=cdfss,ro,procuid,nosuid,nodev,exec,iocharset=utf8 0 0
> /dev/fd0 /media/floppy subfs
> fs=floppyfss,procuid,nodev,nosuid,sync 0 0
> /dev/md0 /storage reiserfs acl,user_xattr
>
> -----------------------------------------------
> /proc/dma
>
> 4: cascade
>
> -----------------------------------------------
> /proc/interrupts
>
> CPU0
> 0: 11052606 XT-PIC timer
> 1: 10 XT-PIC i8042
> 2: 0 XT-PIC cascade
> 5: 13236 XT-PIC ide0, ide1, eth1, VIA8233
> 8: 2 XT-PIC rtc
> 9: 0 XT-PIC acpi
> 11: 79755 XT-PIC eth0, uhci_hcd, uhci_hcd, uhci_hcd
> 12: 50 XT-PIC i8042
> 14: 43472 XT-PIC ide2
> 15: 7081 XT-PIC ide3
> NMI: 0
> LOC: 0
> ERR: 1
> MIS: 0
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-
> raid" in the body of a message to majordomo@vger.kernel.org More
> majordomo info at http://vger.kernel.org/majordomo-info.html
------- End of Original Message -------
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Problem with RAID-5 on SuSE 9.1 (cp hangs, high system load, cpu waits)
2004-05-26 16:04 ` Marc Marais
@ 2004-05-26 21:08 ` TJ Harrell
2004-05-26 21:21 ` maarten van den Berg
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: TJ Harrell @ 2004-05-26 21:08 UTC (permalink / raw)
To: linux-raid
> Oh and your motherboard is using a KT266A chipset - I personally won't
touch > a VIA chipset since that whole PCI / Soundblaster fiasco (I still
have
> nightmares). AFAIK the KT266A has PCI issues which have some kind of
> workaround in the Linux kernel, however it might be a factor in your
situation.
I was about to say the same thing. Which Southbridge do you have? Particular
VIA Southbridges have serious problems with transferring files. It was a
peculiar problem; most cases I've read about said that the problem occurred
when transferring files between the onboard controller and on add-on
controller. You might try taking all drives off the built-in controllers and
see if that helps the problem.
---------- Original Message -----------
From: "Christoph Zimmerli" <zeratul@gmx.ch>
To: <linux-raid@vger.kernel.org>
Sent: Wed, 26 May 2004 17:39:43 +0200
Subject: Problem with RAID-5 on SuSE 9.1 (cp hangs, high system load, cpu
waits)
> Hi there!
>
> I'm running SuSE 9.1 on my fileserver with 6 hds:
> 1 40gb IBM system disk on the onboard ide0
> 5 120gb Maxtor disks, 1 with the system disk on onboard ide0 and 4
> on an Adaptec 1200A.
>
> I configured the 5 120gb disks as software RAID-5 array, using ext3
> as fs. The system itself runs ok like that, but strange things
> happen, when I start to copy files onto/from the RAID: - Copying
> starts normally - Copying hangs, no more data is transferred - The
> CPU is almost 100% in wait state - The system load increases
> steadily - iowait is huge but the disks are idle
>
> If I react quick, I can kill the cp process, and everything returns
> to normality. But if you wait too long, the process can't be killed
> anymore. The problem is, you can't even shutdown the pc, because the
> system seems to wait for something. I then pressed the reset button.
> When booting, the system reports, it's recovering the journal of md0,
> and hangs there. I waited about 15h at max, but nothing happened.
> When resetting again, the system came up flawlessly, and did about
> 1.5h of RAID-resync. But when copying again, the same things would happen.
>
> I was able to have the system running for half a week with all the
hardware
> inside, all disks connected, but each disk mounted as /disk1 etc.
> with ext3. I then copied around some gb, but there was no high load
> or so, and every cp terminated. I read in the list, that there were
> some problems with ext3 as fs, so I changed the fs to Reiser, but
> that didn't help.
>
> After these tests I think, that it has to be something with the RAID
> itself, or the simultaneous disk access in RAID-mode.
>
> Any ideas about how to solve this problem would be highly appreciated!
>
> Have a nice day!
> Christoph
>
> -----------------------------------------------
> System Information:
>
> AMD AthlonXP 1800+
> 512mb RAM
> Shuttle AK31
> ASUS DVD-ROM
> 1 IBM IC35L040AVER07-0 (40gb system disk)
> 5 Maxtor 6Y120L0 (120gb storage disks)
> Adaptec 1200A PCI IDE Controller
>
> -----------------------------------------------
> /proc/version
>
> Linux version 2.6.4-54.5-default (geeko@buildhost) (gcc version
> 3.3.3 (SuSE
> Linux)) #1 Fri May 7 21:43:10 UTC 2004
>
> -----------------------------------------------
> /proc/mdstat:
>
> md0 : active raid5 hdh1[4] hdg1[3] hdd1[2] hdc1[1] hda1[0]
> 480242688 blocks level 5, 128k chunk, algorithm 2 [5/5] [UUUUU]
>
> unused devices: <none>
>
> -----------------------------------------------
> /etc/fstab
>
> /dev/hde3 / ext3 acl,user_xattr
> 1 1 /dev/hde1 /boot ext3 acl,
> user_xattr 1 2 /dev/hde4 /var ext3
> acl,user_xattr 1 2 /dev/hde2 swap
> swap pri=42 0 0 devpts
> /dev/pts devpts mode=0620,gid=5 0 0 proc
> /proc proc defaults 0 0
> usbfs /proc/bus/usb usbfs noauto
> 0 0 sysfs /sys sysfs
> noauto 0 0 /dev/dvd /media/dvd subfs
> fs=cdfss,ro,procuid,nosuid,nodev,exec,iocharset=utf8 0 0
> /dev/fd0 /media/floppy subfs
> fs=floppyfss,procuid,nodev,nosuid,sync 0 0
> /dev/md0 /storage reiserfs acl,user_xattr
>
> -----------------------------------------------
> /proc/dma
>
> 4: cascade
>
> -----------------------------------------------
> /proc/interrupts
>
> CPU0
> 0: 11052606 XT-PIC timer
> 1: 10 XT-PIC i8042
> 2: 0 XT-PIC cascade
> 5: 13236 XT-PIC ide0, ide1, eth1, VIA8233
> 8: 2 XT-PIC rtc
> 9: 0 XT-PIC acpi
> 11: 79755 XT-PIC eth0, uhci_hcd, uhci_hcd, uhci_hcd
> 12: 50 XT-PIC i8042
> 14: 43472 XT-PIC ide2
> 15: 7081 XT-PIC ide3
> NMI: 0
> LOC: 0
> ERR: 1
> MIS: 0
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-
> raid" in the body of a message to majordomo@vger.kernel.org More
> majordomo info at http://vger.kernel.org/majordomo-info.html
------- End of Original Message -------
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More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Problem with RAID-5 on SuSE 9.1 (cp hangs, high system load, cpu waits)
2004-05-26 21:08 ` TJ Harrell
@ 2004-05-26 21:21 ` maarten van den Berg
2004-05-26 21:39 ` Christoph Zimmerli
2004-05-27 15:26 ` david
2 siblings, 0 replies; 6+ messages in thread
From: maarten van den Berg @ 2004-05-26 21:21 UTC (permalink / raw)
To: linux-raid
On Wednesday 26 May 2004 23:08, TJ Harrell wrote:
> > Oh and your motherboard is using a KT266A chipset - I personally won't
> touch > a VIA chipset since that whole PCI / Soundblaster fiasco (I still
> have
>
> > nightmares). AFAIK the KT266A has PCI issues which have some kind of
> > workaround in the Linux kernel, however it might be a factor in your
> situation.
I wasn't totally aware of these issues... Is there any consensus on the newer
VIA chipsets, like the KT400 and the KT600 ? I have the KT600 here and have
not seen issues with it, but it is not yet running raid, so...
Maarten
> I was about to say the same thing. Which Southbridge do you have?
> Particular VIA Southbridges have serious problems with transferring files.
> It was a peculiar problem; most cases I've read about said that the problem
> occurred when transferring files between the onboard controller and on
> add-on controller. You might try taking all drives off the built-in
> controllers and see if that helps the problem.
--
When I answered where I wanted to go today, they just hung up -- Unknown
^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: Problem with RAID-5 on SuSE 9.1 (cp hangs, high system load, cpu waits)
2004-05-26 21:08 ` TJ Harrell
2004-05-26 21:21 ` maarten van den Berg
@ 2004-05-26 21:39 ` Christoph Zimmerli
2004-05-27 15:26 ` david
2 siblings, 0 replies; 6+ messages in thread
From: Christoph Zimmerli @ 2004-05-26 21:39 UTC (permalink / raw)
To: linux-raid
The South Bridge on the board is the VT8233 and there are indeed two drives
per IDE-channel.
I didn't know about the problems you mentioned. The fact is, the same board
is running in a couple of other machines in this house, but mine was the
first to show problems.
I'll give the version with all drives on add-on controllers a try tomorrow
and report back.
Thanks for your help!
-----Original Message-----
From: linux-raid-owner@vger.kernel.org
[mailto:linux-raid-owner@vger.kernel.org] On Behalf Of TJ Harrell
Sent: Mittwoch, 26. Mai 2004 23:08
To: linux-raid@vger.kernel.org
Subject: Re: Problem with RAID-5 on SuSE 9.1 (cp hangs, high system load,
cpu waits)
> Oh and your motherboard is using a KT266A chipset - I personally won't
touch > a VIA chipset since that whole PCI / Soundblaster fiasco (I still
have
> nightmares). AFAIK the KT266A has PCI issues which have some kind of
> workaround in the Linux kernel, however it might be a factor in your
situation.
I was about to say the same thing. Which Southbridge do you have? Particular
VIA Southbridges have serious problems with transferring files. It was a
peculiar problem; most cases I've read about said that the problem occurred
when transferring files between the onboard controller and on add-on
controller. You might try taking all drives off the built-in controllers and
see if that helps the problem.
---------- Original Message -----------
From: "Christoph Zimmerli" <zeratul@gmx.ch>
To: <linux-raid@vger.kernel.org>
Sent: Wed, 26 May 2004 17:39:43 +0200
Subject: Problem with RAID-5 on SuSE 9.1 (cp hangs, high system load, cpu
waits)
> Hi there!
>
> I'm running SuSE 9.1 on my fileserver with 6 hds:
> 1 40gb IBM system disk on the onboard ide0
> 5 120gb Maxtor disks, 1 with the system disk on onboard ide0 and 4 on
> an Adaptec 1200A.
>
> I configured the 5 120gb disks as software RAID-5 array, using ext3 as
> fs. The system itself runs ok like that, but strange things happen,
> when I start to copy files onto/from the RAID: - Copying starts
> normally - Copying hangs, no more data is transferred - The CPU is
> almost 100% in wait state - The system load increases steadily -
> iowait is huge but the disks are idle
>
> If I react quick, I can kill the cp process, and everything returns to
> normality. But if you wait too long, the process can't be killed
> anymore. The problem is, you can't even shutdown the pc, because the
> system seems to wait for something. I then pressed the reset button.
> When booting, the system reports, it's recovering the journal of md0,
> and hangs there. I waited about 15h at max, but nothing happened.
> When resetting again, the system came up flawlessly, and did about
> 1.5h of RAID-resync. But when copying again, the same things would happen.
>
> I was able to have the system running for half a week with all the
hardware
> inside, all disks connected, but each disk mounted as /disk1 etc.
> with ext3. I then copied around some gb, but there was no high load or
> so, and every cp terminated. I read in the list, that there were some
> problems with ext3 as fs, so I changed the fs to Reiser, but that
> didn't help.
>
> After these tests I think, that it has to be something with the RAID
> itself, or the simultaneous disk access in RAID-mode.
>
> Any ideas about how to solve this problem would be highly appreciated!
>
> Have a nice day!
> Christoph
>
> -----------------------------------------------
> System Information:
>
> AMD AthlonXP 1800+
> 512mb RAM
> Shuttle AK31
> ASUS DVD-ROM
> 1 IBM IC35L040AVER07-0 (40gb system disk)
> 5 Maxtor 6Y120L0 (120gb storage disks) Adaptec 1200A PCI IDE
> Controller
>
> -----------------------------------------------
> /proc/version
>
> Linux version 2.6.4-54.5-default (geeko@buildhost) (gcc version
> 3.3.3 (SuSE
> Linux)) #1 Fri May 7 21:43:10 UTC 2004
>
> -----------------------------------------------
> /proc/mdstat:
>
> md0 : active raid5 hdh1[4] hdg1[3] hdd1[2] hdc1[1] hda1[0]
> 480242688 blocks level 5, 128k chunk, algorithm 2 [5/5] [UUUUU]
>
> unused devices: <none>
>
> -----------------------------------------------
> /etc/fstab
>
> /dev/hde3 / ext3 acl,user_xattr
> 1 1 /dev/hde1 /boot ext3 acl,
> user_xattr 1 2 /dev/hde4 /var ext3
> acl,user_xattr 1 2 /dev/hde2 swap
> swap pri=42 0 0 devpts
> /dev/pts devpts mode=0620,gid=5 0 0 proc
> /proc proc defaults 0 0
> usbfs /proc/bus/usb usbfs noauto
> 0 0 sysfs /sys sysfs
> noauto 0 0 /dev/dvd /media/dvd subfs
> fs=cdfss,ro,procuid,nosuid,nodev,exec,iocharset=utf8 0 0
> /dev/fd0 /media/floppy subfs
> fs=floppyfss,procuid,nodev,nosuid,sync 0 0
> /dev/md0 /storage reiserfs acl,user_xattr
>
> -----------------------------------------------
> /proc/dma
>
> 4: cascade
>
> -----------------------------------------------
> /proc/interrupts
>
> CPU0
> 0: 11052606 XT-PIC timer
> 1: 10 XT-PIC i8042
> 2: 0 XT-PIC cascade
> 5: 13236 XT-PIC ide0, ide1, eth1, VIA8233
> 8: 2 XT-PIC rtc
> 9: 0 XT-PIC acpi
> 11: 79755 XT-PIC eth0, uhci_hcd, uhci_hcd, uhci_hcd
> 12: 50 XT-PIC i8042
> 14: 43472 XT-PIC ide2
> 15: 7081 XT-PIC ide3
> NMI: 0
> LOC: 0
> ERR: 1
> MIS: 0
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux- raid"
> in the body of a message to majordomo@vger.kernel.org More majordomo
> info at http://vger.kernel.org/majordomo-info.html
------- End of Original Message -------
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To unsubscribe from this list: send the line "unsubscribe linux-raid" in the
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Problem with RAID-5 on SuSE 9.1 (cp hangs, high system load, cpu waits)
2004-05-26 21:08 ` TJ Harrell
2004-05-26 21:21 ` maarten van den Berg
2004-05-26 21:39 ` Christoph Zimmerli
@ 2004-05-27 15:26 ` david
2 siblings, 0 replies; 6+ messages in thread
From: david @ 2004-05-27 15:26 UTC (permalink / raw)
To: TJ Harrell; +Cc: linux-raid
I dont think the problem is related to the motherboard. I have a
configuration similar but on 2 SCSI cards and the problems persistes!
David
>> Oh and your motherboard is using a KT266A chipset - I personally won't
> touch > a VIA chipset since that whole PCI / Soundblaster fiasco (I still
> have
>> nightmares). AFAIK the KT266A has PCI issues which have some kind of
>> workaround in the Linux kernel, however it might be a factor in your
> situation.
>
> I was about to say the same thing. Which Southbridge do you have?
> Particular
> VIA Southbridges have serious problems with transferring files. It was a
> peculiar problem; most cases I've read about said that the problem
> occurred
> when transferring files between the onboard controller and on add-on
> controller. You might try taking all drives off the built-in controllers
> and
> see if that helps the problem.
>
>
>
> ---------- Original Message -----------
> From: "Christoph Zimmerli" <zeratul@gmx.ch>
> To: <linux-raid@vger.kernel.org>
> Sent: Wed, 26 May 2004 17:39:43 +0200
> Subject: Problem with RAID-5 on SuSE 9.1 (cp hangs, high system load, cpu
> waits)
>
>> Hi there!
>>
>> I'm running SuSE 9.1 on my fileserver with 6 hds:
>> 1 40gb IBM system disk on the onboard ide0
>> 5 120gb Maxtor disks, 1 with the system disk on onboard ide0 and 4
>> on an Adaptec 1200A.
>>
>> I configured the 5 120gb disks as software RAID-5 array, using ext3
>> as fs. The system itself runs ok like that, but strange things
>> happen, when I start to copy files onto/from the RAID: - Copying
>> starts normally - Copying hangs, no more data is transferred - The
>> CPU is almost 100% in wait state - The system load increases
>> steadily - iowait is huge but the disks are idle
>>
>> If I react quick, I can kill the cp process, and everything returns
>> to normality. But if you wait too long, the process can't be killed
>> anymore. The problem is, you can't even shutdown the pc, because the
>> system seems to wait for something. I then pressed the reset button.
>> When booting, the system reports, it's recovering the journal of md0,
>> and hangs there. I waited about 15h at max, but nothing happened.
>> When resetting again, the system came up flawlessly, and did about
>> 1.5h of RAID-resync. But when copying again, the same things would
>> happen.
>>
>> I was able to have the system running for half a week with all the
> hardware
>> inside, all disks connected, but each disk mounted as /disk1 etc.
>> with ext3. I then copied around some gb, but there was no high load
>> or so, and every cp terminated. I read in the list, that there were
>> some problems with ext3 as fs, so I changed the fs to Reiser, but
>> that didn't help.
>>
>> After these tests I think, that it has to be something with the RAID
>> itself, or the simultaneous disk access in RAID-mode.
>>
>> Any ideas about how to solve this problem would be highly appreciated!
>>
>> Have a nice day!
>> Christoph
>>
>> -----------------------------------------------
>> System Information:
>>
>> AMD AthlonXP 1800+
>> 512mb RAM
>> Shuttle AK31
>> ASUS DVD-ROM
>> 1 IBM IC35L040AVER07-0 (40gb system disk)
>> 5 Maxtor 6Y120L0 (120gb storage disks)
>> Adaptec 1200A PCI IDE Controller
>>
>> -----------------------------------------------
>> /proc/version
>>
>> Linux version 2.6.4-54.5-default (geeko@buildhost) (gcc version
>> 3.3.3 (SuSE
>> Linux)) #1 Fri May 7 21:43:10 UTC 2004
>>
>> -----------------------------------------------
>> /proc/mdstat:
>>
>> md0 : active raid5 hdh1[4] hdg1[3] hdd1[2] hdc1[1] hda1[0]
>> 480242688 blocks level 5, 128k chunk, algorithm 2 [5/5] [UUUUU]
>>
>> unused devices: <none>
>>
>> -----------------------------------------------
>> /etc/fstab
>>
>> /dev/hde3 / ext3 acl,user_xattr
>> 1 1 /dev/hde1 /boot ext3 acl,
>> user_xattr 1 2 /dev/hde4 /var ext3
>> acl,user_xattr 1 2 /dev/hde2 swap
>> swap pri=42 0 0 devpts
>> /dev/pts devpts mode=0620,gid=5 0 0 proc
>> /proc proc defaults 0 0
>> usbfs /proc/bus/usb usbfs noauto
>> 0 0 sysfs /sys sysfs
>> noauto 0 0 /dev/dvd /media/dvd
>> subfs
>> fs=cdfss,ro,procuid,nosuid,nodev,exec,iocharset=utf8 0 0
>> /dev/fd0 /media/floppy subfs
>> fs=floppyfss,procuid,nodev,nosuid,sync 0 0
>> /dev/md0 /storage reiserfs acl,user_xattr
>>
>> -----------------------------------------------
>> /proc/dma
>>
>> 4: cascade
>>
>> -----------------------------------------------
>> /proc/interrupts
>>
>> CPU0
>> 0: 11052606 XT-PIC timer
>> 1: 10 XT-PIC i8042
>> 2: 0 XT-PIC cascade
>> 5: 13236 XT-PIC ide0, ide1, eth1, VIA8233
>> 8: 2 XT-PIC rtc
>> 9: 0 XT-PIC acpi
>> 11: 79755 XT-PIC eth0, uhci_hcd, uhci_hcd, uhci_hcd
>> 12: 50 XT-PIC i8042
>> 14: 43472 XT-PIC ide2
>> 15: 7081 XT-PIC ide3
>> NMI: 0
>> LOC: 0
>> ERR: 1
>> MIS: 0
>>
>> -
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> ------- End of Original Message -------
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^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2004-05-27 15:26 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2004-05-26 15:39 Problem with RAID-5 on SuSE 9.1 (cp hangs, high system load, cpu waits) Christoph Zimmerli
2004-05-26 16:04 ` Marc Marais
2004-05-26 21:08 ` TJ Harrell
2004-05-26 21:21 ` maarten van den Berg
2004-05-26 21:39 ` Christoph Zimmerli
2004-05-27 15:26 ` david
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