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| author | David Miller | 2018-10-26 05:36:46 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2018-11-04 14:50:54 +0100 |
| commit | d7f58d5f2cdbd5a12f3f6b71606f374353f07cf9 (patch) | |
| tree | fa30f089ef73f2634d266324f2efa044b89aeea6 /arch/sparc/Kconfig.debug | |
| parent | sparc64: Export __node_distance. (diff) | |
| download | kernel-qcow2-linux-d7f58d5f2cdbd5a12f3f6b71606f374353f07cf9.tar.gz kernel-qcow2-linux-d7f58d5f2cdbd5a12f3f6b71606f374353f07cf9.tar.xz kernel-qcow2-linux-d7f58d5f2cdbd5a12f3f6b71606f374353f07cf9.zip | |
sparc64: Make corrupted user stacks more debuggable.
[ Upstream commit 5b4fc3882a649c9411dd0dcad2ddb78e911d340e ]
Right now if we get a corrupted user stack frame we do a
do_exit(SIGILL) which is not helpful.
If under a debugger, this behavior causes the inferior process to
exit. So the register and other state cannot be examined at the time
of the event.
Instead, conditionally log a rate limited kernel log message and then
force a SIGSEGV.
With bits and ideas borrowed (as usual) from powerpc.
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/sparc/Kconfig.debug')
0 files changed, 0 insertions, 0 deletions