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Date:	Mon, 26 Oct 2009 15:02:40 -0700 (PDT)
From:	Christian Kujau <>
To:	LKML <>
Subject: 2.6.32-rc not booting with Xen-3.2 (bisected)


I'm running a Xen-3.2 Dom0 (Ubuntu 8.04 LTS, kernel 2.6.24) which is 
hosting several DomUs. One of them is a debian/unstable and I'm trying to 
run the latest -git version of Linus' tree. However, I wasn't able to test 
for a while and I noticed just now that I cannot boot 2.6.32-rc1 any more, 
2.6.31 (release) was booting fine. Unfortunately, "xm create sid.cfg -c" 
just says "Domain started", but then "xm list" just shows the DomU in "p" 
or in "b" state, and the console ("-c") isn't attached either, so I don't 
really know where the DomU stops (or panics). However, I was able to 
bisect it, I hope the bisection makes any sense:

sid$ git bisect log
git bisect start
# good: [74fca6a42863ffacaf7ba6f1936a9f228950f657] Linux 2.6.31
git bisect good 74fca6a42863ffacaf7ba6f1936a9f228950f657
# bad: [17d857be649a21ca90008c6dc425d849fa83db5c] Linux 2.6.32-rc1
git bisect bad 17d857be649a21ca90008c6dc425d849fa83db5c
# good: [5d1fe0c98f2aef99fb57aaf6dd25e793c186cea3] Staging: vt6656: Integrate vt6656 into build system.
git bisect good 5d1fe0c98f2aef99fb57aaf6dd25e793c186cea3
# bad: [c720f5655df159a630fa0290a0bd67c93e92b0bf] Merge branch 'for_linus' of git://
git bisect bad c720f5655df159a630fa0290a0bd67c93e92b0bf
# good: [a03fdb7612874834d6847107198712d18b5242c7] Merge branch 'timers-for-linus' of git://
git bisect good a03fdb7612874834d6847107198712d18b5242c7
# good: [3530c1886291df061e3972c55590777ef1cb67f8] Merge branch 'for_linus' of git://
git bisect good 3530c1886291df061e3972c55590777ef1cb67f8
# bad: [84d6ae431f315e8973aac3c3fe1d550fc9240ef3] V4L/DVB (13033): pt1: Don't use a deprecated DMA_BIT_MASK macro
git bisect bad 84d6ae431f315e8973aac3c3fe1d550fc9240ef3
# bad: [068ed40b8fc14cd3d16b5cf2db59ecd735a68ca8] V4L/DVB (12939): SAA7164: Removed a duplicate call to address any PCI quirks.
git bisect bad 068ed40b8fc14cd3d16b5cf2db59ecd735a68ca8
# bad: [f4e96deb4513d044653027d4921fd7592195503a] V4L/DVB (12756): af9015: fix typo in register compare
git bisect bad f4e96deb4513d044653027d4921fd7592195503a
# good: [dd0a70c8f921708eba29ef9f30dde1f14a74af05] x86: Move tsc_init to late_time_init
git bisect good dd0a70c8f921708eba29ef9f30dde1f14a74af05
# bad: [53e712d0844e99b8d8720327470b86ef401fb727] V4L/DVB (12734): cx25821: Fix some compilation troubles
git bisect bad 53e712d0844e99b8d8720327470b86ef401fb727
# good: [7bd867dfb4e0357e06a3211ab2bd0e714110def3] x86: Move get/set_wallclock to x86_platform_ops
git bisect good 7bd867dfb4e0357e06a3211ab2bd0e714110def3
# bad: [78f28b7c555359c67c2a0d23f7436e915329421e] Merge branch 'x86-platform-for-linus' of git://
git bisect bad 78f28b7c555359c67c2a0d23f7436e915329421e
# good: [9c88b25bcfde51eccf2cca13d933a2948d0ca4eb] frv: clean up linker script using new linker script macros.
git bisect good 9c88b25bcfde51eccf2cca13d933a2948d0ca4eb

Version numbers and more for both the domU and dom0 are on:

Only the "Merge branch x86-platform-for-linus" pops out 
where a lot of x86 changes have been merged, but I have no
idea how to bisect within a "single" change.

Please advise.

BOFH excuse #308:

CD-ROM server needs recalibration
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