** Changed in: ubuntu-z-systems
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1904884
Title:
s390: dbginfo.sh triggers kernel panic, reading from
This bug was fixed in the package linux - 4.15.0-129.132
---
linux (4.15.0-129.132) bionic; urgency=medium
* bionic/linux: 4.15.0-129.132 -proposed tracker (LP: #1907635)
* Packaging resync (LP: #1786013)
- update dkms package versions
* Ubuntu 18.04- call trace in kernel
This bug was fixed in the package linux - 5.4.0-59.65
---
linux (5.4.0-59.65) focal; urgency=medium
* focal/linux: 5.4.0-59.65 -proposed tracker (LP: #1907604)
* focal: selftests/bpf build broken: test_map_init.skel.h: No such file or
directory (LP: #1906866)
- SAUCE:
thank you for the verification, adjusting tag accordingly ...
** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic
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This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
bionic' to 'verification-done-bionic'. If the problem still exists,
change the tag
Thx Gerald, adjusting tags accordingly ...
** Tags removed: verification-needed-focal
** Tags added: verification-done-focal
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https://bugs.launchpad.net/bugs/1904884
Title:
s390:
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
focal' to 'verification-done-focal'. If the problem still exists, change
the tag
** Changed in: ubuntu-z-systems
Status: In Progress => Fix Committed
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Title:
s390: dbginfo.sh triggers kernel panic, reading from
** Changed in: linux (Ubuntu Bionic)
Status: In Progress => Fix Committed
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Title:
s390: dbginfo.sh triggers kernel panic, reading from
** Changed in: linux (Ubuntu Focal)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu Focal)
Status: In Progress => Fix Committed
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applied to B and F trees
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Title:
s390: dbginfo.sh triggers kernel panic, reading from
/sys/kernel/mm/page_idle/bitmap
To manage notifications
Kernel SRU request submitted for bionic and focal:
https://lists.ubuntu.com/archives/kernel-team/2020-November/thread.html#115045
changing status to 'In Progress' for bionic and focal.
** Changed in: linux (Ubuntu Focal)
Status: New => In Progress
** Changed in: linux (Ubuntu Bionic)
** Description changed:
+ SRU Justification:
+ ==
+
+ [Impact]
+
+ * While executing dbginfo.sh (a script to collect runtime,
+ configuration, and trace information on s390x) the systems hangs.
+
+ * This is because 'idle page tracking' users can pass random pfn, that might
be
'draft' backport for bionic - tbd
** Patch added: "mm_page_idle.c_skip_offline_pages-backport_to_bionic.patch"
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1904884/+attachment/5437240/+files/mm_page_idle.c_skip_offline_pages-backport_to_bionic.patch
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Looks like it's fixed now - the BZ bridge stopped re-attaching the
attachment ...
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Title:
s390: dbginfo.sh triggers kernel panic, reading from
** Attachment removed: "mm_page_idle.c_skip_offline_pages-backport.patch"
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1904884/+attachment/5436363/+files/mm_page_idle.c_skip_offline_pages-backport.patch
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Hmm, that's interesting, the BZ bridge seems to have the patch re-attached :-/
(see LP comment #6)
I removed it (however, not sure if the bridge will attach it again ...)
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** Attachment removed: "mm_page_idle.c_skip_offline_pages-backport.patch"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1904884/+attachment/5436362/+files/mm_page_idle.c_skip_offline_pages-backport.patch
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quick update on focal:
Cherry pick worked cleanly, build succeeded w/o issues and a test install
didn't showed any regressions so far (after some hours and oidn another build
on top).
The kernel test build is available here for further evaluation:
Well, there should be no patch attached, yet.
There was just an attempt to cherry-pick but it wasn't added to this LP.
(And at least on LP there is no patch attached.)
If you accidentally received one via the BZ bridge, please ignore and remove.
Anyway, appreciate your comment ...
** Attachment
suggested bionic backport for /mm/page_idle.c
** Patch added: "mm_page_idle.c_skip_offline_pages-backport.patch"
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1904884/+attachment/5436359/+files/mm_page_idle.c_skip_offline_pages-backport.patch
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