Messages in this thread | | | Date | 19 Jan 2014 06:35:55 -0500 | From | "George Spelvin" <> | Subject | Re: math_state_restore and kernel_fpu_end disable interrupts? |
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THANK YOU!
I've been having a problem with ext4 metadata checksums, which use SSE for large blocks, and traced it to kernel_fpu_end() disabling interrupts, but had paused to debug this (I assumed well-tested) piece of kernel code before pushing it harder.
(Search October-December LKML archives for "3.11.4: kernel BUG at fs/buffer.c:1268".")
No, I'm pretty sure it's a real bug. At least, it's biting me on the ass.
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