Chao, I just had the same problem, with kernel 4.12.8 with patch _f2fs: fix out-of-order execution in f2fs_issue_flush_.
On Tue, Aug 22, 2017 at 2:00 PM, Marcelo "Marc" Ranolfi <marc.2...@gmail.com> wrote: > Hi Chao > > I'm testing the kernel with your patch since last night. Will give new > feedback a couple of days/weeks about how it goes. > > > Thank you. > > > > On Mon, Aug 21, 2017 at 11:58 AM, Chao Yu <c...@kernel.org> wrote: >> Hi Marcelo, >> >> Thanks for the report! >> >> Would you have a try with below patch? >> >> f2fs: fix out-of-order execution in f2fs_issue_flush >> >> Thanks, >> >> On 2017/8/16 15:24, Marcelo "Marc" Ranolfi wrote: >>> Just wanted to let you all know that this is still an issue, even with >>> the 4.12.7 kernel. >>> >>> The two most affected applications are qemu-system-x86_64 and totem. >>> >>> On Wed, Aug 9, 2017 at 3:04 AM, Marcelo "Marc" Ranolfi >>> <marc.2...@gmail.com> wrote: >>>> What follows is a bug report. >>>> >>>> I've been experiencing system lockups somewhat randomly. Sometimes an >>>> application freezes, and when I go check its properties, it says the >>>> process' Wait Channel is _f2fs_issue_flush_. >>>> >>>> Sometimes it's the qemu process (which I use via libvirt), other times >>>> it's Firefox, or Gnome Videos (totem) and it happened to Nemo once as >>>> well. I have screenshots if necessary. >>>> >>>> I've been tracking this with screenshots, and it's happenning every 4 >>>> days - on average. >>>> >>>> When this happens, the process stays unresponsive no matter what. I tried: >>>> >>>> - Restarting swap >>>> - Restarting the Display Manager >>>> - Graceful shutdown / reboot - takes forever, doesn't work >>>> - Shutdown -k and unmounting filesystems from command line - root >>>> can't be unmounted unless -l used, no solution >>>> >>>> The only working solution is to reset the machine via power button or >>>> #reboot -f. >>>> >>>> I have: >>>> >>>> - Kingston SV300S37A120G - hardware is fine, I have other OS / filesystems >>>> on it >>>> - f2fs filesystem in a 40 GB partition, GPT >>>> - kernel 4.12.4 with systemd 234.11 - typical up-to-date Arch Linux setup. >>>> >>>> You gentlemen let me know if I provide more help. >>>> >>>> Best, >>>> Marc >>> >>> ------------------------------------------------------------------------------ >>> Check out the vibrant tech community on one of the world's most >>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot >>> _______________________________________________ >>> Linux-f2fs-devel mailing list >>> Linux-f2fs-devel@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel >>> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
