linux/fs/proc
John Ogness cb8f381f16 fs/proc/array.c: allow reporting eip/esp for all coredumping threads
0a1eb2d474 ("fs/proc: Stop reporting eip and esp in /proc/PID/stat")
stopped reporting eip/esp and fd7d56270b ("fs/proc: Report eip/esp in
/prod/PID/stat for coredumping") reintroduced the feature to fix a
regression with userspace core dump handlers (such as minicoredumper).

Because PF_DUMPCORE is only set for the primary thread, this didn't fix
the original problem for secondary threads.  Allow reporting the eip/esp
for all threads by checking for PF_EXITING as well.  This is set for all
the other threads when they are killed.  coredump_wait() waits for all the
tasks to become inactive before proceeding to invoke a core dumper.

Link: http://lkml.kernel.org/r/87y32p7i7a.fsf@linutronix.de
Link: http://lkml.kernel.org/r/20190522161614.628-1-jlu@pengutronix.de
Fixes: fd7d56270b ("fs/proc: Report eip/esp in /prod/PID/stat for coredumping")
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Reported-by: Jan Luebbe <jlu@pengutronix.de>
Tested-by: Jan Luebbe <jlu@pengutronix.de>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-06-29 16:43:44 +08:00
..
array.c fs/proc/array.c: allow reporting eip/esp for all coredumping threads 2019-06-29 16:43:44 +08:00
base.c proc: remove useless d_is_dir() check 2019-06-27 12:25:09 +02:00
cmdline.c proc: introduce proc_create_single{,_data} 2018-05-16 07:23:35 +02:00
consoles.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 191 2019-05-30 11:29:21 -07:00
cpuinfo.c x86 / CPU: Always show current CPU frequency in /proc/cpuinfo 2017-11-15 19:46:50 +01:00
devices.c proc: introduce proc_create_seq{,_data} 2018-05-16 07:23:35 +02:00
fd.c proc: use "unsigned int" in proc_fill_cache() 2018-06-07 17:34:38 -07:00
fd.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
generic.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
inode.c procfs: switch to ->free_inode() 2019-05-01 22:43:25 -04:00
internal.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
interrupts.c proc: introduce proc_create_seq{,_data} 2018-05-16 07:23:35 +02:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
kcore.c fs/proc/kcore.c: make kcore_modules static 2019-03-29 10:01:37 -07:00
kmsg.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
loadavg.c sched: loadavg: consolidate LOAD_INT, LOAD_FRAC, CALC_LOAD 2018-10-26 16:26:32 -07:00
Makefile proc: : uninline name_to_int() 2017-11-17 16:10:00 -08:00
meminfo.c mm, proc: add KReclaimable to /proc/meminfo 2018-10-26 16:26:32 -07:00
namespaces.c procfs: switch instantiate_t to d_splice_alias() 2018-05-26 14:20:50 -04:00
nommu.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
page.c mm: convert PG_balloon to PG_offline 2019-03-05 21:07:14 -08:00
proc_net.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
proc_sysctl.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-05-02 22:14:21 -04:00
proc_tty.c tty: replace ->proc_fops with ->proc_show 2018-05-16 07:24:30 +02:00
root.c Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-03-12 14:08:19 -07:00
self.c fs/proc/self.c: code cleanup for proc_setup_self() 2019-03-05 21:07:21 -08:00
softirqs.c proc: introduce proc_create_single{,_data} 2018-05-16 07:23:35 +02:00
stat.c Merge branch 'akpm' (patches from Andrew) 2019-03-06 10:31:36 -08:00
task_mmu.c mm/mmu_notifier: use correct mmu_notifier events for each invalidation 2019-05-14 09:47:49 -07:00
task_nommu.c Merge branch 'akpm' (patches from Andrew) 2019-03-06 10:31:36 -08:00
thread_self.c fs/proc/thread_self.c: code cleanup for proc_setup_thread_self() 2019-03-05 21:07:21 -08:00
uptime.c fs/proc/uptime.c: use ktime_get_boottime_ts64 2018-08-22 10:52:45 -07:00
util.c fs/proc/util.c: include fs/proc/internal.h for name_to_int() 2019-01-04 13:13:45 -08:00
version.c proc: introduce proc_create_single{,_data} 2018-05-16 07:23:35 +02:00
vmcore.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00