Re: 2.6.15-mm3 hang with raid-1

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On Sun, Feb 05, 2006 at 12:14:24AM -0800, Andrew Morton wrote:
> Eric Buddington <[email protected]> wrote:
> >
> > Running 2.6.15-mm3 PREEMPT on an Athlon XP, Asus motherboard with
> > VT8366/A/7 chipset.
> > 
> > I have a 240GB raid0 on hda3 and hdc1 containing a reiser3
> > filesystem. It works fine.
> > 
> > I have a 40GB raid1 on hda2 and hdd1, which is giving me problems. I
> > can write to all of hda2 and hdd1 (before creating the array) without
> > error, and mdadm seems to create the array all right.
> > 
> > However, just after the array finishes synchronizing (either after
> > creation or messy reboot), all new commands hang (I can still type at
> > existing shells, but as soon as I try to run a program, it becomes
> > unresponsive). While hung, disk activity light is off. On reboot, the
> > array is detected as clean, no synchronization is done, and my system
> > works (until I try to use the raid1 array).
> > 
> > mkreiserfs /dev/md0 also causes the hang, when it syscalls fsync().
> > 
> > My system disk is hda1, so I don't know if all disks are hung up, or
> > just all of hda.
> > 
> > I'm doing all this at the console, and I see no error messages.
> > 
> > The computer keeps performing NAT, and alt-sysrq-b works.
> > 
> > What can I do to fix or help debug this problem?
> > 
> Could you test -mm5 please?

using 2.6.16-rc1-mm5:
	- creation of reiserfs on resyncing raid1 works.
	- resync completes without hanging the system.
	- creating of reiserfs on resynced raid1 works

Looks good - thanks!

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