** Also affects: linux (Ubuntu Trusty)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Vivid)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Utopic)
Importance: Undecided
Status: New
** Description changed:
Steps to reproduce the bug:
1. Install Ubuntu 14.04.1 on the Cisco M-series server.
2. Run reboot test, OS will come up and go for graceful reboot continuously.
- 3. I am seeing kernel panic in 3 out of 4 Ubuntu machines . Don't know after
how many iterations of reboot it happened. I checked the server 6 hours after
starting the reboot test.
+ 3. I am seeing kernel panic in 3 out of 4 Ubuntu machines . Don't know after
how many iterations of reboot it happened. I checked the server 6 hours after
starting the reboot test.
4. Don't know whether this panic is happening while the OS was booting or
while going for reboot.
The bug has been root caused to the enic driver and a fix has been posted
upstream.
Please find below the details of the patch submitted upstream.
4cfe878537cec0e9c0f84b93cc6aa9526f6942b5 enic: do tx cleanup in napi
poll.
This bug is submitted for the patch to be pulled in from upstream to
Ubuntu's releases.
+
+ ===
+ break-fix: - 4cfe878537cec0e9c0f84b93cc6aa9526f6942b5
** Tags added: kernel-bug-break-fix
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https://bugs.launchpad.net/bugs/1438039
Title:
Ubuntu14.04.1 kernel panics with enic driver throwing a NULL Pointer
exception
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