| Message ID | 20210104181934.GA16612@paulmck-ThinkPad-P72 (mailing list archive) |
|---|---|
| State | Handled Elsewhere, archived |
| Headers | show |
| Series | [GIT,PULL] Fix kprobes issue by moving RCU-tasks initialization earlier | expand |
The pull request you sent on Mon, 4 Jan 2021 10:19:34 -0800:
> git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/urgent
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/36bbbd0e234d817938bdc52121a0f5473b3e58f5
Thank you!
Hello, Linus, This fix is for a regression in the v5.10 merge window, but it was reported quite late in the v5.10 process, plus generating and testing the fix took some time. The regression is due to 36dadef23fcc ("kprobes: Init kprobes in early_initcall") which on powerpc can use RCU Tasks before initialization, resulting in boot failures. The fix is straightforward, simply moving initialization of RCU Tasks before the early_initcall()s. The fix has been exposed to -next and kbuild test robot testing, and has been tested by the PowerPC guys. The following changes since commit 0477e92881850d44910a7e94fc2c46f96faa131f: Linux 5.10-rc7 (2020-12-06 14:25:12 -0800) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/urgent for you to fetch changes up to 1b04fa9900263b4e217ca2509fd778b32c2b4eb2: rcu-tasks: Move RCU-tasks initialization to before early_initcall() (2020-12-14 15:31:13 -0800) ---------------------------------------------------------------- Uladzislau Rezki (Sony) (1): rcu-tasks: Move RCU-tasks initialization to before early_initcall() include/linux/rcupdate.h | 6 ++++++ init/main.c | 1 + kernel/rcu/tasks.h | 25 +++++++++++++++++++++---- 3 files changed, 28 insertions(+), 4 deletions(-)