Linux kernel latest source http://mirrors.hust.edu.cn/git/linux-next.git/atom?h=master 2020-05-13T09:55:06+00:00 2020-05-13T09:55:06+00:00 Guo Ren guoren@linux.alibaba.com 2020-05-13T07:15:25+00:00 urn:sha1:18c07d23da5a48525b2955aa269b8bb108c19300 The implementation of show_stack will panic with wrong fp: addr = *fp++; because the fp isn't checked properly. The current implementations of show_stack, wchan and stack_trace haven't been designed properly, so just deprecate them. This patch is a reference to riscv's way, all codes are modified from arm's. The patch is passed with: - cat /proc/<pid>/stack - cat /proc/<pid>/wchan - echo c > /proc/sysrq-trigger Signed-off-by: Guo Ren <guoren@linux.alibaba.com> 2019-02-13T01:48:14+00:00 Guo Ren ren_guo@c-sky.com 2019-01-31T06:34:37+00:00 urn:sha1:131aee8b9807bc98379fa5a0270389dbc7dcec90 When STACKTRACE is enabled, we must pass fp as stack for unwind, otherwise random value in stack will casue a dead loop. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reported-by: Lu Baoquan <lu.baoquan@intellif.com> 2018-12-31T15:15:38+00:00 Guo Ren ren_guo@c-sky.com 2018-12-09T09:07:20+00:00 urn:sha1:8f4f1639a19db231e4579612dbc6d147e8d07ffd Use STACKTRACE to optimize panic print more pretty and align registers printing. Signed-off-by: Guo Ren <ren_guo@c-sky.com> 2018-10-25T16:54:25+00:00 Guo Ren ren_guo@c-sky.com 2018-09-05T06:25:19+00:00 urn:sha1:2ce36bfa6a0904524baed699ad78706e50295f84 This patch adds arch ptrace implementation, stack dump and bug.h. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de>