Comment 0 for bug 1904884
Revision history for this message
| bugproxy (bugproxy) wrote [UBUNUT 20.04] s390: dbginfo.sh triggers kernel panic, reading from /sys/kernel/mm/page_idle/bitmap | #0 |
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1b1ed1a
(Get the code!)
System hangs on dbginfo.sh script execution.
Solution:
Commit 92fb1db26eef ("mm/page_idle.c: skip offline pages")
Included upstream since kernel v5.8, so it is already included in Ubuntu 20.10, but not in 20.04 and earlier.
Commit 92fb1db26eef ("mm/page_idle.c: skip offline pages") applies cleanly on ubuntu-focal, but not on ubuntu-bionic.
Adjustment / backport for bionic should be trivial, but it is not IBM code and therefore the backport will be requested here by Canonical.