For #5's log, the fault happened in the following code snippet of
kernel/sched/cputime.c:
for_each_thread(tsk, t) {
ffffffc0000d3dc0: f9445760 ldr x0, [x27,#2216]
ffffffc0000d3dc4: f8410c03 ldr x3, [x0,#16]!
ffffffc0000d3dc8: f90037a3 str x3, [x29,#104]
ffffffc0000d3dcc: f94037b4 ldr x20, [x29,#104]
ffffffc0000d3dd0: eb00029f cmp x20, x0
ffffffc0000d3dd4: d10ee294 sub x20, x20, #0x3b8
ffffffc0000d3dd8: 54000081 b.ne ffffffc0000d3de8
<thread_group_cputime+0x90>
ffffffc0000d3ddc: 14000015 b ffffffc0000d3e30
<thread_group_cputime+0xd8>
ffffffc0000d3de0: f9400261 ldr x1, [x19]
ffffffc0000d3de4: f9400662 ldr x2, [x19,#8]
cputime_t *utime, cputime_t *stime)
{
if (utime)
*utime = t->utime;
if (stime)
*stime = t->stime;
ffffffc0000d3de8: f941f684 ldr x4, [x20,#1000] #fault
instruction
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1469218
Title:
HP ProLiant m400 Server sda timeout causes file system hang
Status in linux package in Ubuntu:
Triaged
Bug description:
While running stress-ng on a ProLiant m400 Server I managed to cause
the disk controller to timeout which causes a file system hang. I am
wondering if the timeout was causes because I completely overloaded
the system causing it to be slow on ata handling times.
I ran:
stress-ng --all 64 -t 600 -v
and the machine slowly clogged up with stress processes, and finally
hit the hang. Had to reboot the system.
Attached is a kernel log.
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