This bug was fixed in the package linux - 4.18.0-20.21
---
linux (4.18.0-20.21) cosmic; urgency=medium
* CVE-2018-12126 // CVE-2018-12127 // CVE-2018-12130
- Documentation/l1tf: Fix small spelling typo
- x86/cpu: Sanitize FAM6_ATOM naming
- kvm: x86: Report STIBP on
This bug was fixed in the package linux - 4.15.0-50.54
---
linux (4.15.0-50.54) bionic; urgency=medium
* CVE-2018-12126 // CVE-2018-12127 // CVE-2018-12130
- Documentation/l1tf: Fix small spelling typo
- x86/cpu: Sanitize FAM6_ATOM naming
- kvm: x86: Report STIBP on
Cosmic VM with proposed kernel withstand the stress for over 12 hours.
** Tags removed: verification-needed-cosmic
** Tags added: verification-done-cosmic
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
Cosmic verification in progress.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1814874
Title:
NULL pointer dereference when using z3fold and zswap
Status in Linux:
Fix Released
Bionic VM with proposed kernel withstand the stress for over an hour.
** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
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
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-
cosmic' to 'verification-done-cosmic'. If the problem still exists,
change the tag
** Changed in: linux (Ubuntu Cosmic)
Status: In Progress => Fix Committed
** Changed in: linux (Ubuntu Bionic)
Status: In Progress => Fix Committed
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
** Description changed:
- Under memory pressure, my VM locks up. This has been reported upstream
- though I don't know how far any solution has progressed.
+ == Justification ==
+ When using z3fold and zswap on a VM under overcommitted memory stress,
+ z3fold will complains about an "unknown
** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Bionic)
Status: New => In Progress
** Changed in: linux (Ubuntu Cosmic)
Status: New => In Progress
** Changed in: linux (Ubuntu)
Status: In Progress => Fix
Can be reproduced easily with Cosmic kernel, patch works as expected. A
test kernel could be found here:
http://people.canonical.com/~phlin/kernel/lp-1814874-z3fold-
zswap/Cosmic/
Will try this on Bionic next.
** Also affects: linux (Ubuntu Cosmic)
Importance: Undecided
Status: New
--
Thanks for the feedback, I will see if I can reproduce this and SRU this
patch.
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Po-Hsu Lin (cypressyew)
** Changed in: linux (Ubuntu)
Status: New => In Progress
--
You received this bug notification because you are a member of
I don't recall seeing a soft lockup at all, not a related one anyway.
Sadly I don't have a specific command but I did find it triggered when:
1. Memory is overcommited. It doesn't have to be heavily overcommitted.
2. I/O is very high.
3. I “leave“ an SSH session, releasing a small amount of
Hello Ken,
do you have a command to reproduce this? I would like to use it to
verify the fix.
I tired this on a Cosmic KVM allocated with 2G ram, 512MB swap, with:
* "zswap.enabled=1 zswap.zpool=z3fold zswap.max_pool_percent=5
zswap.compressor=lz4" added to the grub
* z3pool, lz4,
Fix available in upstream:
https://github.com/torvalds/linux/commit/ca0246bb97c23da9d267c2107c07fb77e38205c9
It can be cherry-picked into B/C
It's already landed in Disco as Ken mentioned in #13
** Package changed: linux-signed-hwe (Ubuntu) => linux (Ubuntu)
--
You received this bug
15 matches
Mail list logo
