Matthew Wilcox wrote:
On Tue, Jan 15, 2008 at 12:04:09PM +0900, K.Tanaka wrote:
I would like to introduce a SCSI fault injection framework using SystemTap.
Currently, kernel has Fault-injection framework and Faulty mode for md,
which can also be used for testing the error handling. But, they
On Tue, Jan 15, 2008 at 12:04:09PM +0900, K.Tanaka wrote:
-dm-mirror's redundancy doesn't work. A read error from the disk consisting
the array will be directory passed to the userspace, without reading from
the other mirror.
(It turns out that this issue is a known issue, but the
On Mon, 14 Jan 2008, NeilBrown wrote:
raid5's 'make_request' function calls generic_make_request on
underlying devices and if we run out of stripe heads, it could end up
waiting for one of those requests to complete.
This is bad as recursive calls to generic_make_request go on a queue
and
On Tue, 15 Jan 2008 21:01:17 -0800 (PST) dean gaudet [EMAIL PROTECTED] wrote:
On Mon, 14 Jan 2008, NeilBrown wrote:
raid5's 'make_request' function calls generic_make_request on
underlying devices and if we run out of stripe heads, it could end up
waiting for one of those requests to
On Tue, 15 Jan 2008, Andrew Morton wrote:
On Tue, 15 Jan 2008 21:01:17 -0800 (PST) dean gaudet [EMAIL PROTECTED]
wrote:
On Mon, 14 Jan 2008, NeilBrown wrote:
raid5's 'make_request' function calls generic_make_request on
underlying devices and if we run out of stripe heads, it
heheh.
it's really easy to reproduce the hang without the patch -- i could
hang the box in under 20 min on 2.6.22+ w/XFS and raid5 on 7x750GB.
i'll try with ext3... Dan's experiences suggest it won't happen with ext3
(or is even more rare), which would explain why this has is overall a
rare
On Wed, 16 Jan 2008 00:09:31 -0700 Dan Williams [EMAIL PROTECTED] wrote:
heheh.
it's really easy to reproduce the hang without the patch -- i could
hang the box in under 20 min on 2.6.22+ w/XFS and raid5 on 7x750GB.
i'll try with ext3... Dan's experiences suggest it won't happen with
