** Also affects: linux (Ubuntu Precise)
Importance: Medium
Status: Confirmed
** Changed in: linux (Ubuntu Precise)
Status: Confirmed => In Progress
** Changed in: linux (Ubuntu Precise)
Assignee: (unassigned) => Leann Ogasawara (leannogasawara)
** Description changed:
- Latest Precise Kernel (linux-headers-3.2.0-22-generic 3.2.0-22.35) does not
boot in pvops mode and this due to
- a kernel NULL pointer dereference oops generated in xen_irq_init.
+ === Precise SRU Justification ===
+ Latest Precise Kernel (linux-headers-3.2.0-22-generic 3.2.0-22.35) does not
boot in pvops mode and this due to a kernel NULL pointer dereference oops
generated in xen_irq_init.
+
+ === Fix ===
+ Revert commit 73d63d03 which was included in upstream stable v3.2.14. Based
on discusson upstream regarding this commit, it appears it should not have been
applied to upstream stable v3.2.y:
+
+ http://www.mail-archive.com/[email protected]/msg04782.html
+
+ commit 73d63d038ee9f769f5e5b46792d227fe20e442c5
+ Author: Suresh Siddha <[email protected]>
+ Date: Mon Mar 12 11:36:33 2012 -0700
+
+ x86/ioapic: Add register level checks to detect bogus io-apic
+ entries
+
+ === Testing ===
+ The bug reporter has tested a kernel with the above commit reverted. They
confirm the machine boots properly.
+
+ === Original Bug Description ===
+ Latest Precise Kernel (linux-headers-3.2.0-22-generic 3.2.0-22.35) does not
boot in pvops mode and this due to a kernel NULL pointer dereference oops
generated in xen_irq_init.
Following post on the kernel mailing list points to patch that introduced
this issue in 3.2.14 kernels:
http://www.spinics.net/lists/kernel/msg1321449.html
To confirm if the issue is was not present in the 3.2.13 kernel I
installed the main line kernel (linux-image-3.2.13-030213-generic
3.2.13-030213.201203231755) and the system booted without issue.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/974982
Title:
pvops NULL pointer dereference oops in latest precise kernel
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/974982/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
