Messages in this thread | | | Date | Wed, 1 Mar 2006 02:31:10 -0800 | From | Paul Jackson <> | Subject | Re: + proc-dont-lock-task_structs-indefinitely-cpuset-fix-2.patch added to -mm tree |
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Updated and corrected results, now including the previously untested patch:
cpufreq-_ppc-frequency-change-issues-freq-already-lowered-by-bios.patch - good gregkh-driver-put_device-might_sleep.patch - special case gregkh-driver-empty_release_functions_are_broken.patch - special case gregkh-driver-allow-sysfs-attribute-files-to-be-pollable.patch - bad
where the two special cases boot with the warnings reported, and the bad case crashes on boot as reported.
That a patch named "*might_sleep*" causes the warning: Debug: sleeping function called from invalid context at drivers/base/core.c:343^M in_atomic():1, irqs_disabled():0^M seems likely enough to me.
Perhaps the problem isn't so much a mainline bug in: gregkh-driver-allow-sysfs-attribute-files-to-be-pollable.patch but rather perhaps this patch has trouble handling this DEBUG warning ??
Recall, as noted before, this crash requires some DEBUG options.
If I disable CONFIG_DEBUG_SPINLOCK and CONFIG_DEBUG_SPINLOCK_SLEEP, then a build up through and including (and beyond) the following patches:
cpufreq-_ppc-frequency-change-issues-freq-already-lowered-by-bios.patch gregkh-driver-put_device-might_sleep.patch gregkh-driver-empty_release_functions_are_broken.patch gregkh-driver-allow-sysfs-attribute-files-to-be-pollable.patch
boots fine. With these two DEBUG options, it crashes during boot (the "bad" above).
-- I won't rest till it's the best ... Programmer, Linux Scalability Paul Jackson <pj@sgi.com> 1.925.600.0401 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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