Russell Coker wrote:
> I am using RAID-1 with two 46G IBM ATA-66 hard drives, the RAID-1 is on
> /dev/hda4 and /dev/hda4 and is 43510604 blocks in size.
>
> Here's the fdisk output from /dev/hdc, /dev/hda is exactly the same (I used
> dd to copy the partition table).
>
> Disk /dev/hdc: 255 heads, 63 sectors, 5606 cylinders
> Units = cylinders of 16065 * 512 bytes
>
> Device Boot Start End Blocks Id System
> /dev/hdc1 1 33 265041 82 Linux swap
> /dev/hdc2 34 36 24097+ 83 Linux
> /dev/hdc3 37 189 1228972+ 83 Linux
> /dev/hdc4 190 5606 43512052+ 83 Linux
>
> Here is my current /etc/raidtab:
> raiddev /dev/md0
> raid-level 1
> nr-raid-disks 2
> persistent-superblock 1
> chunk-size 4k
> device /dev/ide/host0/bus0/target0/lun0/part4
> raid-disk 0
> device /dev/ide/host0/bus1/target0/lun0/part4
> raid-disk 1
>
> Here is my df output:
> Filesystem 1k-blocks Used Available Use% Mounted on
> /dev/ide/host0/bus0/target0/lun0/part3
> 1228916 952728 276188 78% /
> /dev/ide/host0/bus0/target0/lun0/part2
> 23333 4172 17957 19% /boot
> /dev/md/0 43510604 557652 42952952 1% /mnt
>
> I am migrating to devfs as you will notice. I started playing with devfs
> AFTER the first time RAID locked up on me so I know it's not caused by devfs.
> I have had RAID lockup with and without devfs.
>
> The first time it locked up I could run ps/top/etc but any attempt to sync
> etc would hang (D state).
> The second time it was more serious. The command:
> ls -al /proc/247
> would go D state, so ps, top, etc would all hang. Pid 247 was named.
>
> At the time of the hang the only process using the RAID device was a bonnie++
> test run on a ReiserFS file system. I doubt that ReiserFS or the drive
> hardware was at fault because I spent an entire week running various bonnie++
> tests on /dev/hda4 with ReiserFS and ext2 without any problems at all. All
> the evidence I have suggests that ReiserFS is not at fault, however I have
> CC'd the ReiserFS list (just in case) and I am continuing to run tests.
Hi
Just to make sure, that it is reiserfs problem - would you mind to try to hang
the ext2fs?
Thanks,
vs
>
>
> The bonnie++ command was:
> bonnie++ -s 512
>
> It seems that running the bonnie++ command on it's own does not cause a hang,
> it's only when I redirect stdout and stderr to files on the same file system
> that problems occur. I've just run another test and had it hang badly enough
> that I couldn't login via telnet or ssh (the machine has no monitor).
>
> This time it got through the first run but on the second run (with parameters
> "-s 1024 -n 60") it hung.
>
> The machine in question is a test machine. So if anyone has any experimental
> patches etc they want me to run then please let me know.
>
> Russell Coker
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This archive was generated by hypermail 2b29 : Fri Jul 07 2000 - 21:00:12 EST