Re: PROBLEM: NULL pointer dereference in kernel 4.14.6

Bronek Kozicki
2017-12-17T18:48:16Z

FWIW, I can do "cat" . I get a single number seemingly followed by an
infinite stream of 0s (I tried wc -l, but did not want to wait very long
and killed it). Here is what it looks like, if limited by "head":

root@gdansk ~ # cat
'/sys/fs/cgroup/unified/machine.slice/machine-qemu\x2d1\x2dkartuzy\x2dspice.scope/cgroup.procs'
| head
10649
0
0
0
0
0
0
0
0
0
root@gdansk ~ #

PID 10649 is indeed qemu process running the virtual machine in
question:

root@gdansk ~ # ps lw 10649
F UID PID PPID PRI NI VSZ RSS WCHAN STAT TTY TIME
COMMAND
6 0 10649 1 20 0 4815836 60252 - Sl ? 2:56
/usr/bin/qemu-system-x86_64 -name
guest=kartuzy-spice,process=qemu:kartuzy-spice,debug-threads=on -S
-object se

Sorry about taint by ZFS, but there is nothing I can do, it is my root
filesystem. Since I am the only user of the package in question I could
cheat and replace the license for the build of the ZFS module, but I do
not see how that might help.

B.