2011/9/27 Catalin Marinas <catalin.marinas at arm.com>: > On Tue, Sep 27, 2011 at 10:29:06AM +0100, Russell King - ARM Linux wrote: >> On Mon, Sep 26, 2011 at 05:19:39PM -0300, Fernando Endo wrote: >> > - BUG: scheduling while atomic: init/1/0xffff000a >> >> The last figure is the preempt count. ?This is made up from: >> >> ?* - bits 0-7 are the preemption count (max preemption depth: 256) >> ?* - bits 8-15 are the softirq count (max # of softirqs: 256) >> ?* - bits 16-25 are the hardirq count (max # of nested hardirqs: 1024) >> ?* - bit 26 is the NMI_MASK >> ?* - bit 28 is the PREEMPT_ACTIVE flag >> >> That seems to be saying that preemption has been disabled 10 times. >> The upper 16-bits being all-ones seems to be rather insane - maybe >> there's an additional __irq_exit() or irq_exit() call somewhere in >> one of your code paths. > > Fernando, do you have CONFIG_PREEMPT enabled in your kernel? That's not > currently possible with my Cortex-M3 port (see the "Exception handling" > section in the M3 wiki page for an explanation). I set CONFIG_PREEMPT_NONE after having this bug, my .config is attached if you want to have a look Thank you both for the advices, I'll take a look Att, Fernando Akira Endo -------------- next part -------------- A non-text attachment was scrubbed... Name: config Type: application/octet-stream Size: 4715 bytes Desc: not available URL: <http://lists.infradead.org/pipermail/linux-arm-toolchain/attachments/20110927/1db6d40f/attachment-0001.obj>
