Messages in this thread | | | Date | Mon, 21 Dec 2009 17:46:08 +0100 | From | "Carlos R. Mafra" <> | Subject | 2.6.33-rc1+ bisected (?) s2ram regression |
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After 2.6.33-rc1 suspend to RAM (echo mem > /sys/power/state) stopped working on my Vaio. Plain 2.6.33-rc1 is fine.
The symptom is that it seems to never finish suspending, and the last messages on the console stay there forever and the laptop stays dead (no leds blinking, can't hear the fan, no nothing). I have to press the power button to use it again.
I bisected it down to e2912009fb7b7157 ("sched: Ensure set_task_cpu() is never called on blocked tasks"), but it does not revert cleanly for me to double check it.
[ I tried to "solve" the merge conflict and the kernel compiled, but s2ram did not work after that. So I am not sure if my bisection culprit makes sense. ] This is the bisect log:
# good: [55639353a0035052d9ea6cfe4dde0ac7fcbb2c9f] Linux 2.6.33-rc1 git bisect good 55639353a0035052d9ea6cfe4dde0ac7fcbb2c9f # bad: [dd59f6c76b265ed2ff18b497d6105a9511b1feb1] Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha-2.6 git bisect bad dd59f6c76b265ed2ff18b497d6105a9511b1feb1 # bad: [aac3d39693529ca538e37ebdb6ed5d6432a697c7] Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip git bisect bad aac3d39693529ca538e37ebdb6ed5d6432a697c7 # bad: [077614ee1e93245a3b9a4e1213659405dbeb0ba6] sched: Fix broken assertion git bisect bad 077614ee1e93245a3b9a4e1213659405dbeb0ba6 # bad: [e2912009fb7b715728311b0d8fe327a1432b3f79] sched: Ensure set_task_cpu() is never called on blocked tasks git bisect bad e2912009fb7b715728311b0d8fe327a1432b3f79 # good: [b9f8fcd55bbdb037e5332dbdb7b494f0b70861ac] sched: Fix cpu_clock() in NMIs, on !CONFIG_HAVE_UNSTABLE_SCHED_CLOCK git bisect good b9f8fcd55bbdb037e5332dbdb7b494f0b70861ac # good: [9ee349ad6d326df3633d43f54202427295999c47] sched: Fix set_cpu_active() in cpu_down() git bisect good 9ee349ad6d326df3633d43f54202427295999c47 # good: [e4f4288842ee12747e10c354d72be7d424c0b627] sched: Select_task_rq_fair() must honour SD_LOAD_BALANCE git bisect good e4f4288842ee12747e10c354d72be7d424c0b627 # good: [06b83b5fbea273672822b6ee93e16781046553ec] sched: Use TASK_WAKING for fork wakups git bisect good 06b83b5fbea273672822b6ee93e16781046553ec
If there is anything else I can do, let me know.
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