Simon May wrote:> Hi I'm hoping you maybe able to help > I have late last year converted all my machines to ext3 no problems > now I have one machine crashing once every 4 / 5 days > I have used a crash dump and see the following > > <0>Assertion failure in do_get_write_access() at transaction.c:589: > "handle->h_buffer_credits > 0" > > Search on this seems to indicate the problem maybe with ext3 journaling > system > > I'm considering upgrading to 2.4.20 I'm using 2.4.19 currently > but my reading indicates that this will not solve the problem > and may make it worst > > The only change I have made is to disable DMA for the disks > > Any advice would be welcomeHi Simon, well, I'm just the maintainer of the ext3 FAQ, not *the* ext3 guru. You will get much better answers from the ext3 mailing list, to where I forwarded your question. Regards, Juri
Simon May wrote:> Hi I'm hoping you maybe able to help > I have late last year converted all my machines to ext3 no problems > now I have one machine crashing once every 4 / 5 days > I have used a crash dump and see the following > > <0>Assertion failure in do_get_write_access() at transaction.c:589: > "handle->h_buffer_credits > 0" > > Search on this seems to indicate the problem maybe with ext3 journaling > system > > I'm considering upgrading to 2.4.20 I'm using 2.4.19 currently > but my reading indicates that this will not solve the problem > and may make it worst > > The only change I have made is to disable DMA for the disksYou need to give us more details about the rest of the messages that appear with the above assertion failure. That message itself tells us that something is wrong with the internals of the ext3 code, but othewise doesn't give us any clue as to what is going wrong, and where. You need to provide the full oops report (decoded, with stack trace), and if possible a report of what you were doing at the time this problem appeared. Cheers, Andreas -- Andreas Dilger http://sourceforge.net/projects/ext2resize/ http://www-mddsp.enel.ucalgary.ca/People/adilger/