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UML needs it's own probe_kernel_read() to handle kernel mode faults correctly. The implementation uses mincore() on the host side to detect whether a page is owned by the UML kernel process. This fixes also a possible crash when sysrq-t is used. Starting with 3.10 sysrq-t calls probe_kernel_read() to read details from the kernel workers. As kernel worker are completely async pointers may turn NULL while reading them. Cc: <stian@nixia.no> Cc: <tj@kernel.org> Cc: <stable@vger.kernel.org> # 3.10.x Signed-off-by: Richard Weinberger <richard@nod.at> |
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.. | ||
skas | ||
aio.h | ||
arch.h | ||
as-layout.h | ||
common-offsets.h | ||
elf_user.h | ||
frame_kern.h | ||
init.h | ||
irq_kern.h | ||
irq_user.h | ||
kern_util.h | ||
kern.h | ||
longjmp.h | ||
mem_user.h | ||
mem.h | ||
net_kern.h | ||
net_user.h | ||
os.h | ||
ptrace_user.h | ||
registers.h | ||
sigio.h | ||
skas_ptrace.h | ||
um_malloc.h | ||
user.h |