From: Jes Sorensen <Jes.Sorensen@xxxxxxxxxx> Hi, This patch set fixes the problem with mdadm racing udev during during incremental or regular assembly of IMSM raids. This set fixes a bug in the initial patch I posted earlier, and adds the locking to Assemble() which I didn't have in the first round. There are three patches to the set: 1) Hold the lock while running Incremental_container() to avoid udev (or someone else like a boot script) kicking off an additional mdadm instance to try and assemble the container in parallel. 2) Don't send udev a 'change' event to handle incremental assembly since we are about to do it ourselves anyway. 3) Hold the lock during Assemble() again to avoid udev kicking in behind our backs. With these patches in place, I can no longer reproduce the case I was seeing on Fedora 16 Beta where an array would not come up correctly. Patches are on top of Neil's current git repository. Comments? Cheers, Jes Jes Sorensen (3): Remove race for starting container devices. Don't tell sysfs to launch the container as we are doing it ourselves Hold the map lock while performing Assemble to avoid races with udev Incremental.c | 27 ++++++++++++++------------- mdadm.c | 6 ++++++ 2 files changed, 20 insertions(+), 13 deletions(-) -- 1.7.6.4 -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
