matthew/sonic-buildimage
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

[sysctl] Increase hung_task_timeout_secs to 300 (#6312)

Browse Source 
Depending on the performance characteristics of a given hardware platform, it's possible to exceed the default 120 second kernel timeout during I/O intensive operations like image installation. This can cause a kernel panic like so:

kernel:[ 852.441781] Kernel panic - not syncing: hung_task: blocked tasks

If this happens during image installation, it's possible for the install to become corrupted and leave the device in an unreachable state that requires a power cycle to resolve. This risk increases as image size continues to increase. So, we need to increase the timeout so that we don't encounter kernel panics on devices with lower disk throughput.

Signed-off-by: Danny Allen <daall@microsoft.com>
This commit is contained in:
Danny Allen 2020-12-30 05:00:16 -08:00 committed by GitHub
parent 119fd7f577
commit a64994ec29
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
build_debian.sh
View File

@ -402,6 +402,7 @@ sudo augtool --autosave "
set /files/etc/sysctl.conf/kernel.core_pattern '|/usr/local/bin/coredump-compress %e %t %p %P'
set /files/etc/sysctl.conf/kernel.softlockup_panic 1
set /files/etc/sysctl.conf/kernel.panic 10
set /files/etc/sysctl.conf/kernel.hung_task_timeout_secs 300
set /files/etc/sysctl.conf/vm.panic_on_oom 2
set /files/etc/sysctl.conf/fs.suid_dumpable 2
" -r $FILESYSTEM_ROOT