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line6usb calltrace and warnings

PostPosted: Wed Nov 12, 2014 5:10 pm
by xxterry1xx
Hello grsec/pax members,

dmesg kernel shows a warning at drivers/usb/core/hcd.c (transfer buffer not dma capable) then a call trace, then a receive length failed (error -11),read request failed (error -32) and write request failed (error -11)

the dmesg kernel log can be found here > https://bugs.archlinux.org/task/42756?getfile=12421

Re: line6usb calltrace and warnings

PostPosted: Wed Nov 12, 2014 7:10 pm
by spender
Hi,

Thanks, this is a case of DMA-on-stack. I've fixed it just now and the fix will be included in the next set of patches (all three kernels have the same buggy upstream code).

-Brad

Re: line6usb calltrace and warnings

PostPosted: Wed Nov 12, 2014 8:38 pm
by xxterry1xx
spender wrote:Hi,

Thanks, this is a case of DMA-on-stack. I've fixed it just now and the fix will be included in the next set of patches (all three kernels have the same buggy upstream code).

-Brad

Thanks for fixing the bug :D