Messages in this thread | | | From | Christian Brauner <> | Subject | [GIT PULL] thread fixes v5.5-rc5 | Date | Fri, 3 Jan 2020 14:53:03 +0100 |
| |
Hi Linus,
Here are two fixes:
/* Summary */ - Panic earlier when global init exits to generate useable coredumps. Currently, when global init and all threads in its thread-group have exited we panic via: do_exit() -> exit_notify() -> forget_original_parent() -> find_child_reaper() This makes it hard to extract a useable coredump for global init from a kernel crashdump because by the time we panic exit_mm() will have already released global init's mm. We now panic slightly earlier. This has been a problem in certain environments such as Android.
- Fix a race in assigning and reading taskstats for thread-groups with more than one thread. This patch has been waiting for quite a while since people disagreed on what the correct fix was at first.
/* Testing */ No build failures or warnings were observed.
/* Conflicts */ At the time of creating this PR no merge conflicts were known.
The following changes since commit 219d54332a09e8d8741c1e1982f5eae56099de85:
Linux 5.4 (2019-11-24 16:32:01 -0800)
are available in the Git repository at:
git@gitolite.kernel.org:pub/scm/linux/kernel/git/brauner/linux tags/for-linus-2020-01-03
for you to fetch changes up to 43cf75d96409a20ef06b756877a2e72b10a026fc:
exit: panic before exit_mm() on global init exit (2019-12-21 16:48:01 +0100)
Please consider pulling these changes from the signed for-linus-2020-01-03 tag.
Thanks and happy new year! Christian
---------------------------------------------------------------- for-linus-2020-01-03
---------------------------------------------------------------- Christian Brauner (1): taskstats: fix data-race
chenqiwu (1): exit: panic before exit_mm() on global init exit
kernel/exit.c | 12 ++++++++---- kernel/taskstats.c | 30 +++++++++++++++++++----------- 2 files changed, 27 insertions(+), 15 deletions(-)
| |