On 3/29/19 7:02 AM, Dmitrii Tcvetkov wrote: > Hi, > > I got kernel panic since v5.1-rc1 when working with files on block > device with BFQ scheduler assigned. I didn't find trivial way to > reproduce the panic but "git checkout origin/linux-5.0.y" > on linux-stable-rc[1] git repo on btrfs filesystem reproduces the > problem 100% of the time on my bare-metal machine and in a VM. > > Bisect led me to commit 9dee8b3b057e1 (block, bfq: fix queue removal > from weights tree). After reverting this commit on top of current > mainline master(9936328b41ce) I can't reproduce the problem. > > dmesg with the panic and bisect log attached. > > [1] https://kernel.googlesource.com/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Paolo, can you please take a look at this? -- Jens Axboe
