Freeze on blksnap tests on ubuntu 20.04 with kernel 5.15
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Hi, on latest version I did 2 fast test, one building kernel 6.1-rc6 with v2 patch for upstream on debian Sid (unstable) vm was ok, another on my notebook with ubuntu 20.04 and kernel 5.15 (from ubuntu package) and blksnap module from git and the system frezeed on blksnap tests.
the log of blksnap tests: https://paste.debian.net/1262187/
and kern.log part that I think related to the issue: https://paste.debian.net/1262189/
@SergeiShtepa tell me if you need full kern.log instead
@SergeiShtepa sorry, I missed the decoded output (using scripts/decode_stacktrace.sh from kernel git) : https://paste.debian.net/1262197/
Thanks. I took it to work. I think these logs are enough.
Funny. I've already fixed this bug in the patch, but I forgot to move it to the master branch.
@SergeiShtepa thanks, I did some fast tests now and no freeze anymore but gave some error, about unload of module fails I tried to add some sleep Fantu@ae8aa53
but there was other error when seems that there is some operation still running when arrive to unload so I suppose there is something wrong, here the logs: https://paste.debian.net/1262321/
Destroy snapshot c1e48299-dcee-4dc7-8391-4d043bdaf66a
Waiting for streach process terminate
Unload module
modprobe: FATAL: Module blksnap is in use.
[TBD]Failed to get event from snapshot.: No such process
Stretch snapshot service failed.
Yes. Two processes work with the module. Synchronization in the test may be required. I'll look at it later.
Work on creating documentation.
@SergeiShtepa thanks for your works, "merging window" for kernel 6.2 should start in 1-2 weeks and I hope the v3 will be get more attention (and I also hope approval if it is already good enough)
@SergeiShtepa I noticed some additional commit of some weeks ago in VAL-6.0 branch: https://github.com/veeam/blksnap/compare/VAL-6.0
also merging them is forgotten or need more testing before merge to master?
Yes, there are some changes in VAL-6.0.
I'm planning to move something to the master branch. But not all of them.