That's a different stack trace and looks like a different problem that
just results in the kernel dying in the same place. And 4.18 is no
longer supported.
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Looks like this patch has not been applied to the 4.18 kernels yet:
kernel BUG at /build/linux-hwe-mCxn_j/linux-hwe-4.18.0/mm/slub.c:296!
invalid opcode: [#1] SMP PTI
CPU: 15 PID: 25039 Comm: kworker/15:0 Tainted: G OE
4.18.0-25-generic #26~18.04.1-Ubuntu
Workqueue: nfsiod
** Changed in: linux (Ubuntu)
Status: Confirmed => Invalid
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https://bugs.launchpad.net/bugs/1812086
Title:
kernel BUG at /build/linux-vxxS7y/linux-4.15.0/mm/slub.c:296!
To
This bug was fixed in the package linux - 4.15.0-46.49
---
linux (4.15.0-46.49) bionic; urgency=medium
* linux: 4.15.0-46.49 -proposed tracker (LP: #1814726)
* mprotect fails on ext4 with dax (LP: #1799237)
- x86/speculation/l1tf: Exempt zeroed PTEs from inversion
*
Tested successfully.
** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic
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https://bugs.launchpad.net/bugs/1812086
Title:
kernel BUG at
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
** Changed in: linux (Ubuntu Bionic)
Status: New => Fix Committed
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https://bugs.launchpad.net/bugs/1812086
Title:
kernel BUG at /build/linux-vxxS7y/linux-4.15.0/mm/slub.c:296!
** Description changed:
+ == SRU Justification ==
+
Rebooting an iSCSI target while the initiator is writing to a LUN leads
to the following trace:
[ 59.879202] [ cut here ]
[ 59.879202] kernel BUG at /build/linux-vxxS7y/linux-4.15.0/mm/slub.c:296!
[
** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Bionic)
Importance: Undecided => Medium
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For clarification, this happens on the target after it comes back from
the reboot and restores the iSCSI configuration.
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https://bugs.launchpad.net/bugs/1812086
Title:
kernel BUG at
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1812086
Title:
kernel BUG at /build/linux-vxxS7y/linux-4.15.0/mm/slub.c:296!
To
** Attachment added: "Kernel log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1812086/+attachment/5229717/+files/dmesg.txt
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Title:
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