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| Started by | Rabin Vincent <rabin.vincent@axis.com> |
|---|---|
| First post | 2016-04-04 15:50 +0200 |
| Last post | 2016-04-13 13:40 +0200 |
| Articles | 2 — 2 participants |
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[PATCH] sched: don't dump sched debug info in SysRq-W Rabin Vincent <rabin.vincent@axis.com> - 2016-04-04 15:50 +0200
[tip:sched/core] sched/debug: Don't dump sched debug info in SysRq-W tip-bot for Rabin Vincent <tipbot@zytor.com> - 2016-04-13 13:40 +0200
| From | Rabin Vincent <rabin.vincent@axis.com> |
|---|---|
| Date | 2016-04-04 15:50 +0200 |
| Subject | [PATCH] sched: don't dump sched debug info in SysRq-W |
| Message-ID | <rkd3c-3J0-23@gated-at.bofh.it> |
From: Rabin Vincent <rabinv@axis.com> sysrq_sched_debug_show() can dump a lot of information. Don't print out all that if we're just trying to get a list of blocked tasks (SysRq-W). The information is still accessible with SysRq-T. Signed-off-by: Rabin Vincent <rabinv@axis.com> --- kernel/sched/core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 8b489fc..e330d6c 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -4998,7 +4998,8 @@ void show_state_filter(unsigned long state_filter) touch_all_softlockup_watchdogs(); #ifdef CONFIG_SCHED_DEBUG - sysrq_sched_debug_show(); + if (!state_filter) + sysrq_sched_debug_show(); #endif rcu_read_unlock(); /* -- 2.7.0
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| From | tip-bot for Rabin Vincent <tipbot@zytor.com> |
|---|---|
| Date | 2016-04-13 13:40 +0200 |
| Subject | [tip:sched/core] sched/debug: Don't dump sched debug info in SysRq-W |
| Message-ID | <rnrjm-x5-71@gated-at.bofh.it> |
| In reply to | #1370628 |
Commit-ID: fb90a6e93c0684ab2629a42462400603aa829b9c Gitweb: http://git.kernel.org/tip/fb90a6e93c0684ab2629a42462400603aa829b9c Author: Rabin Vincent <rabinv@axis.com> AuthorDate: Mon, 4 Apr 2016 15:42:02 +0200 Committer: Ingo Molnar <mingo@kernel.org> CommitDate: Wed, 13 Apr 2016 11:23:21 +0200 sched/debug: Don't dump sched debug info in SysRq-W sysrq_sched_debug_show() can dump a lot of information. Don't print out all that if we're just trying to get a list of blocked tasks (SysRq-W). The information is still accessible with SysRq-T. Signed-off-by: Rabin Vincent <rabinv@axis.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1459777322-30902-1-git-send-email-rabin.vincent@axis.com Signed-off-by: Ingo Molnar <mingo@kernel.org> --- kernel/sched/core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 1159423..06efbb9 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -5050,7 +5050,8 @@ void show_state_filter(unsigned long state_filter) touch_all_softlockup_watchdogs(); #ifdef CONFIG_SCHED_DEBUG - sysrq_sched_debug_show(); + if (!state_filter) + sysrq_sched_debug_show(); #endif rcu_read_unlock(); /*
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