Bug 34942 - [Bug] Kdump does not work when panic triggered due to MCE
[Bug] Kdump does not work when panic triggered due to MCE
Product: Platform Specific/Hardware
Classification: Unclassified
Component: i386
All Linux
: P1 normal
Assigned To: platform_i386
Depends on:
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Reported: 2011-05-11 18:52 UTC by Maciej Rutecki
Modified: 2012-08-23 14:08 UTC (History)
5 users (show)

See Also:
Kernel Version: 2.6.39-rc6
Tree: Mainline
Regression: No


Description Maciej Rutecki 2011-05-11 18:52:14 UTC
Subject    : [Bug] Kdump does not work when panic triggered due to MCE
Submitter  : "K.Prasad" <prasad@linux.vnet.ibm.com>
Date       : 2011-05-06 16:54
Message-ID : 20110506165412.GB2719@in.ibm.com
References : http://marc.info/?l=linux-kernel&m=130470087226270&w=2

This entry is being used for tracking a regression from 2.6.38. Please don't
close it until the problem is fixed in the mainline.
Comment 1 K.Prasad 2011-07-11 06:00:46 UTC
I'm not sure if we can technically call this as a regression since kdump feature isn't working if the panic is triggered due to a fatal MCE, and the facility to inject MCEs were introduced in the kernel quite recently (the basic mce-inject.c file appears to have been introduced during v2.6.30 timeframe).

My report about kdump not working in http://marc.info/?l=linux-kernel&m=130470087226270&w=2, hasn't actually found out if it is broken since v2.6.30, so again we don't have enough information to qualify if it is a regression.

Given more time, I'd like to test the behaviour in kernel versions older than v2.6.38 and update the bug with details.

Let me know if more information is required.

Comment 2 Florian Mickler 2011-08-08 19:17:14 UTC
Dropping from the list of regressions...

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