On Fri, 2015-23-10 at 17:45:57 UTC, Nathan Fontenot wrote: > When DLPAR adding a CPU we should verify that the CPU does not already > exist. Failure to do so can generate a kernel oops; > > [ 9.465585] kernel BUG at arch/powerpc/platforms/pseries/dlpar.c:382! > [ 9.465796] Oops: Exception in kernel mode, sig: 5 [#1] > > This oops can be generated by causing a probe to be performed on a cpu > by writing to the sysfs cpu probe file (/sys/devices/system/cpu/probe). > This patch adds a check for the existence of cpu prior to probing the cpu > so userspace doing the wrong thing won't trigger a BUG_ON(). > > Signed-off-by: Nathan Fontenot <nf...@linux.vnet.ibm.com>
Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/1f859adb9253c2010799625822 cheers _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
