On 3/11/20 11:11 PM, Martin Wilck wrote: > On Wed, 2020-03-11 at 11:29 +0100, Martin Wilck wrote: >> On Mon, 2020-03-02 at 11:55 +0800, He Zhe wrote: >>> Hi, >>> >>> Since the following commit >>> https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git/commit/?h=for-5.5/disk-revalidate&id=6917d0689993f46d97d40dd66c601d0fd5b1dbdd >>> until now(v5.6-rc4), >>> >>> If we start udisksd service of systemd(v244), systemd-udevd will >>> scan >>> /dev/hdc >>> (the cdrom device created by default in qemu(v4.2.0)). systemd- >>> udevd >>> will >>> endlessly run and cause OOM. >> I've tried to reproduce this, but so far I haven't been able to. >> Perhaps because the distro 5.5.7 kernel I've tried (which contains >> the >> offending commit 142fe8f) has no IDE support - the qemu IDE CD shows >> up >> as sr0, with the ata_piix driver. I have systemd-udevd 244. Enabling >> udisksd makes no difference, the system runs stably. ISO images can >> be "ejected" and loaded, single uevents are received and processed. >> >> Does this happen for you if you use ata_piix? > I have enabled the ATA drivers on my test system now, and I still don't > see the issue. "hd*" for CDROM devices has been marked deprecated in > udev since 2009 (!). > > Is it possible that you have the legacy udisksd running, and didn't > disable CD-ROM polling? Thanks for the suggestion, I'll try this ASAP. Zhe > > Martin > >
