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[uml-user] "Kernel panic - not syncing: Kernel mode signal 8" error on running UML
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From: Vijay T. <vi...@in...> - 2017-12-22 09:18:04
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Hi All, System configuration: rootfs: Fedora21-AMD64-root_fs linux image: Linux 4.13.11 #11 Wed Nov 29 10:31:11 IST 2017 x86_64 x86_64 x86_64 GNU/Linux Getting below two errors on running UML. Don't know exact steps to re-produce the issue but if I leave the UML idle for more than 30 mins, problem occurs. reproducibility is 1/3. 1) -------------------------------------------------------------------------------- io_thread - read failed, fd = 5, err = 0 io_thread - read failed, fd = 5, err = 4,reminder = 0 Kernel panic - not syncing: Kernel mode signal 8 -------------------------------------------------------------------------------- 2) -------------------------------------------------------------------------------- io_thread - read failed, fd = 5, err = 4,reminder = 0 do_io - write failed err = 9 fd = 152767770 do_io - read failed, err = 29 fd = 0 do_io - read failed, err = 29 fd = 0 do_io - read failed, err = 29 fd = 0 do_io - read failed, err = 29 fd = 0 do_io - read failed, err = 29 fd = 0 do_io - read failed, err = 29 fd = 0 do_io - read failed, err = 29 fd = 0 do_io - read failed, err = 29 fd = 0 Kernel panic - not syncing: Kernel mode signal 8 -------------------------------------------------------------------------------- output of mount: -------------------------------------------------------------------------------- findmnt TARGET SOURCE FSTYPE OPTIONS / /dev/ubda ext4 rw,relatime,data=ordered |-/dev devtmpfs devtmpfs rw,relatime,mode=755 | |-/dev/shm tmpfs tmpfs rw,nosuid,nodev | |-/dev/pts devpts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 | `-/dev/mqueue mqueue mqueue rw,relatime |-/sys sysfs sysfs rw,nosuid,nodev,noexec,relatime | `-/sys/fs/cgroup tmpfs tmpfs ro,nosuid,nodev,noexec,mode=755 | |-/sys/fs/cgroup/systemd cgroup cgroup rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent, | |-/sys/fs/cgroup/cpu,cpuacct cgroup cgroup rw,nosuid,nodev,noexec,relatime,cpu,cpuacct | |-/sys/fs/cgroup/blkio cgroup cgroup rw,nosuid,nodev,noexec,relatime,blkio | |-/sys/fs/cgroup/devices cgroup cgroup rw,nosuid,nodev,noexec,relatime,devices | `-/sys/fs/cgroup/freezer cgroup cgroup rw,nosuid,nodev,noexec,relatime,freezer |-/proc proc proc rw,nosuid,nodev,noexec,relatime |-/run tmpfs tmpfs rw,nosuid,nodev,mode=755 |-/tmp tmpfs tmpfs rw |-/etc/tejas /dev/ubdc ext4 rw,relatime,data=ordered `-/etc/bin /dev/ubdd ext4 rw,relatime,data=ordered -------------------------------------------------------------------------------- /dev/ubda on / type ext4 (rw,relatime,data=ordered) devtmpfs on /dev type devtmpfs (rw,relatime,mode=755) sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime) proc on /proc type proc (rw,nosuid,nodev,noexec,relatime) tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev) devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000) tmpfs on /run type tmpfs (rw,nosuid,nodev,mode=755) tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755) cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd) cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct) cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio) cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices) cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer) mqueue on /dev/mqueue type mqueue (rw,relatime) tmpfs on /tmp type tmpfs (rw) /dev/ubdd on /etc/bin type ext4 (rw,relatime,data=ordered) /dev/ubdc on /etc/tejas type ext4 (rw,relatime,data=ordered) -------------------------------------------------------------------------------- If any of you faced the similar issue and have a solution, please let me know. Thanks, Vijay |
