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)
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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
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2)
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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
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output of mount:
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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
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/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)
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If any of you faced the similar issue and have a solution, please let me
know.
Thanks,
Vijay
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