Re: [Bug 651846] Re: raid10 fails - "lost page write due to I/O error on md4" and " raid10_make_request bug: can't convert block across chunks or bigger than 128k 1623343324 20" - write fails, remote

2010-10-01 Thread Andrew Hately
Thanks for the follow up - as I mentioned in the follow up, I have made the problem go away by using the default chunk size for raid10. As this is my main file server I don't really want to recreate the problem. If I get a spare afternoon I'll perhaps try to recreate the bug on a less critical mach

[Bug 651846] Re: raid10 fails - "lost page write due to I/O error on md4" and " raid10_make_request bug: can't convert block across chunks or bigger than 128k 1623343324 20" - write fails, remote nfs

2010-10-01 Thread Andrew Hately
Following the above, I did this: 1) stop nfs server daemon, unmount /home, stop /dev/md4 2) make a new md4 with default chunk size (64KiB) but otherwise the same as above 3) made a new xfs filesystem on md4 using md3 as log device, as before 4) mount this as /home, export via nfs 5) restore 1.2TB

[Bug 651846] Re: raid10 fails - "lost page write due to I/O error on md4" and " raid10_make_request bug: can't convert block across chunks or bigger than 128k 1623343324 20" - write fails, remote nfs

2010-09-30 Thread Andrew Hately
** Attachment added: "AlsaDevices.txt" https://bugs.launchpad.net/bugs/651846/+attachment/1656524/+files/AlsaDevices.txt ** Attachment added: "AplayDevices.txt" https://bugs.launchpad.net/bugs/651846/+attachment/1656525/+files/AplayDevices.txt ** Attachment added: "ArecordDevices.txt"

[Bug 651846] [NEW] raid10 fails - "lost page write due to I/O error on md4" and " raid10_make_request bug: can't convert block across chunks or bigger than 128k 1623343324 20" - write fails, remote nf

2010-09-30 Thread Andrew Hately
Public bug reported: Binary package hint: linux-image-2.6.32-25-preempt Asus p5q premium intel motherboard has 6 identical discs on the ICH10 controller, configured mostly as a raid10 array, with an xfs filesystem mounted on /home and exported via nfs. Errors are consistently seen writing large