From: Tejun Heo <tj@kernel.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: David Vernet <void@manifault.com>,
linux-kernel@vger.kernel.org, kernel-team@meta.com,
sched-ext@meta.com, Peter Zijlstra <peterz@infradead.org>
Subject: [GIT PULL] sched_ext: Fixes for v6.12-rc7
Date: Mon, 11 Nov 2024 07:23:52 -1000 [thread overview]
Message-ID: <ZzI9qJ_LLdELWhQX@slm.duckdns.org> (raw)
The following changes since commit c31f2ee5cd7da3086eb4fbeef9f3afdc8e01d36b:
sched_ext: Fix enq_last_no_enq_fails selftest (2024-10-25 12:20:29 -1000)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git/ tags/sched_ext-for-6.12-rc7-fixes
for you to fetch changes up to a6250aa251eacaf3ebfcfe152a96a727fd483ecd:
sched_ext: Handle cases where pick_task_scx() is called without preceding balance_scx() (2024-11-09 10:43:55 -1000)
----------------------------------------------------------------
sched_ext: Fixes for v6.12-rc7
- The fair sched class currently has a bug where its balance() returns true
telling the sched core that it has tasks to run but then NULL from
pick_task(). This makes sched core call sched_ext's pick_task() without
preceding balance() which can lead to stalls in partial mode. For now,
work around by detecting the condition and forcing the CPU to go through
another scheduling cycle.
- Add a missing newline to an error message and fix drgn introspection tool
which went out of sync.
----------------------------------------------------------------
Tejun Heo (3):
sched_ext: Add a missing newline at the end of an error message
sched_ext: Update scx_show_state.py to match scx_ops_bypass_depth's new type
sched_ext: Handle cases where pick_task_scx() is called without preceding balance_scx()
kernel/sched/core.c | 13 ++++++-----
kernel/sched/ext.c | 46 +++++++++++++++++++++++++++------------
kernel/sched/sched.h | 5 +++--
tools/sched_ext/scx_show_state.py | 2 +-
4 files changed, 44 insertions(+), 22 deletions(-)
--
tejun
next reply other threads:[~2024-11-11 17:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-11 17:23 Tejun Heo [this message]
2024-11-12 18:07 ` pr-tracker-bot
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