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由 Vasily Gorbik 提交于
Adjust conditions in on_stack function. That fixes backchain unwinder which was unable to read pt_regs at the very bottom of the stack and hence couldn't follow stacks (e.g. from async stack to a task stack). Fixes: 78c98f90 ("s390/unwind: introduce stack unwind API") Reported-by: NJulian Wiedmann <jwi@linux.ibm.com> Reviewed-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NVasily Gorbik <gor@linux.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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