Comment # 11 on bug 1183990 from Carlos Robinson

Ok, I did:

Telcontar:~ # time echo disk > /sys/power/state

real    24m59.993s
user    0m0.014s
sys    0m3.949s
Telcontar:~ # 


9.4> 2021-03-28T23:45:01.294828+02:00 Telcontar texpire - - -  CER: running
leafnode's texpire without ionice
...
<0.6> 2021-03-28T23:56:24.272664+02:00 Telcontar kernel - - - [70697.016128]
PM: hibernation: hibernation entry
...
<9.4> 2021-03-29T00:14:21.258312+02:00 Telcontar texpire - - -  CER: finished
<1.6> 2021-03-29T00:14:21.287049+02:00 Telcontar run-crons 4014 - -  leafnode:
OK
<9.6> 2021-03-29T00:14:21.316525+02:00 Telcontar run-crons.daily - - - 
Considering my daily cron jobs.
<1.6> 2021-03-29T00:14:21.344056+02:00 Telcontar run-crons 4014 - -  mio.daily:
OK
<1.6> 2021-03-29T00:14:21.376993+02:00 Telcontar run-crons 4014 - - 
storebackup: OK
<1.6> 2021-03-29T00:14:21.688651+02:00 Telcontar run-crons 4014 - - 
suse-texlive: OK
<0.6> 2021-03-29T00:21:24.260731+02:00 Telcontar kernel - - - [71780.466285]
Filesystems sync: 1083.443 seconds
<0.6> 2021-03-29T00:21:24.260822+02:00 Telcontar kernel - - - [71780.466288]
Freezing user space processes ... (elapsed 0.002 seconds) done.
...
<0.6> 2021-03-29T00:21:24.260965+02:00 Telcontar kernel - - - [71790.090320]
OOM killer enabled.
<0.6> 2021-03-29T00:21:24.265114+02:00 Telcontar kernel - - - [71790.090320]
Restarting tasks ... done.
<0.6> 2021-03-29T00:21:24.265118+02:00 Telcontar kernel - - - [71790.092322]
PM: hibernation: hibernation exit


As you can see the problem is the same. If I trigger hibernation while there is
intense i/o on /dev/sdc9, hibernation stalls for 15..20 minutes. The disk
activity takes precedence over the hibernation order.

Tomorrow night I can test something else, please tell me what command to run.