Messages in this thread Patch in this message | | | Date | Mon, 19 Apr 2010 15:21:07 +0200 | From | Vitaly Mayatskikh <> | Subject | Fix OOPS in crash_kernel_shrink |
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Two "echo 0 > /sys/kernel/kexec_crash_size" OOPSes kernel. Also content of this file is invalid after first shrink to zero: it shows 1 instead of 0.
This patch fixes it.
Signed-off-by: Vitaly Mayatskikh <v.mayatskih@gmail.com>
diff --git a/kernel/kexec.c b/kernel/kexec.c index 87ebe8a..474a847 100644 --- a/kernel/kexec.c +++ b/kernel/kexec.c @@ -1134,11 +1134,9 @@ int crash_shrink_memory(unsigned long new_size) free_reserved_phys_range(end, crashk_res.end); - if (start == end) { - crashk_res.end = end; + if (start == end) release_resource(&crashk_res); - } else - crashk_res.end = end - 1; + crashk_res.end = end - 1; unlock: mutex_unlock(&kexec_mutex); -- wbr, Vitaly
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