This issue has been tested and successfully verified:
Verification successful !
"...test appliance built with 4.15.0-58 was unusable ... hundreds of
"BUG: non-zero pgtables_bytes on freeing mm: -16384" in syslog, RestAPI
interface timeouts, failed to produce FFDC data using sosreport.
Build with 4.15.0-60.67 displays none of these behaviors ... smoke test
completed successfully."
** Tags added: verification-done-bionic
** Changed in: linux (Ubuntu Bionic)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1840046
Title:
BUG: non-zero pgtables_bytes on freeing mm: -16384
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Bionic:
Fix Released
Bug description:
[impact]
This message is printed repeatedly in the logs:
BUG: non-zero pgtables_bytes on freeing mm: -16384
[test case]
boot the 4.15.0-58 kernel on s390x
[regression potential]
this affects task pud accounting; regressions may be around cleaning
up task memory.
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