Control: reassign -1 lvm2 Control: forcemerge 918590 -1 On Thu, Mar 21, 2019 at 12:07:34AM +0100, Harald Dunkel wrote: > I apologize again for not sending the log file you asked for right > from the start. Hopefully you found the second strace log file?
Indeed - looks like our emails crossed in the post there. > Of course it is vgs that got slow somehow, but AFAICS it is called > about 16 times for each grub-mkconfig, even though there are only 4 > logical volumes. Grub-mkconfig was run at least 4 times during the > upgrade from Stretch to Buster (then I went home, hoping that it is > finished tomorrow morning). > > Sorry to say, but something got worse with Buster here. If you > come to the conclusion that it is not a problem of grub, then please > feel free to reassign this bug report. Thanks for the details. I tracked this down and it seems to be pretty much the same as #918590. (It's true that grub_util_pull_lvm_by_command could perhaps use some caching, but it's quite cumbersome to arrange that, and given that vgs is taking *minutes* to run I think putting effort into the difference between extremely slow and merely very slow is not all that exciting, versus fixing the bug at its root.) I think you should find that a good workaround is to mount /run in the chroot. This is normally a good idea anyway if you're doing anything complicated in the chroot. Regards, -- Colin Watson [cjwat...@debian.org]
