Re: PROBLEM: NULL pointer dereference in kernel 4.14.6
From: Bronek Kozicki <hidden>
Date: 2017-12-17 18:30:33
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Possibly related (same subject, not in this thread)
- 2017-12-19 · Re: PROBLEM: NULL pointer dereference in kernel 4.14.6 · Tejun Heo <tj@kernel.org>
- 2017-12-19 · Re: PROBLEM: NULL pointer dereference in kernel 4.14.6 · George Amanakis <hidden>
- 2017-12-18 · Re: PROBLEM: NULL pointer dereference in kernel 4.14.6 · Bronek Kozicki <hidden>
On 17/12/2017 18:25, Randy Dunlap wrote:
On 12/17/2017 09:49 AM, Bronek Kozicki wrote:quoted
I just upgraded to 4.14.7 and tried to reproduce this error, this time under strace. As you can see this happens when systemctl tries to read a specific entry under /sys/fs . In case this matters, the entry is for a small virtual machine running under qemu/kvm and managed by libvirt. open("/sys/fs/cgroup/unified/machine.slice", O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = 5 fstat(5, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 getdents(5, /* 12 entries */, 32768) = 464 openat(AT_FDCWD, "/sys/fs/cgroup/unified/machine.slice/machine-qemu\\x2d1\\x2dkartuzy\\x2dspice.scope/cgroup.procs", O_RDONLY|O_CLOEXEC) = 8 fstat(8, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 read(8, <unfinished ...>) = ?+++ killed by SIGKILL +++[1] 12078 killed strace -- systemctl status B.Hi, Can you reproduce this without using (loading) the XFS modules? They cause the kernel to be tainted.
I think you mean ZFS - I cannot do that. It is my root filesystem. B.