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Message-Id: <1389803231-16092-1-git-send-email-atomlin@redhat.com> Date: Wed, 15 Jan 2014 16:27:09 +0000 From: atomlin@...hat.com To: linux-kernel@...r.kernel.org Cc: mingo@...nel.org, oleg@...hat.com, riel@...hat.com, akpm@...ux-foundation.org Subject: [RFC PATCH v3 0/2] hung_task: Display every hung task warning From: Aaron Tomlin <atomlin@...hat.com> When khungtaskd detects hung tasks, it prints out backtraces from a number of those tasks. Sometimes the information on why things are stuck is hidden in those backtraces. Limiting the number of backtraces being printed out can result in the user not seeing the information necessary to debug the issue. This patch introduces an option to print an unlimited number of backtraces when khungtaskd detects hung tasks. While ULONG_MAX is practically "inf", this patch takes it one step further. Note: The maximum is now 2^31-1 (INT_MAX) which should hopefully be sufficient. Rebased against v3.13-rc8. Aaron Tomlin (2): sysctl: Make neg_one a standard constraint hung_task: Display every hung task warning include/linux/sched/sysctl.h | 2 +- kernel/hung_task.c | 6 ++++-- kernel/sysctl.c | 6 ++++-- 3 files changed, 9 insertions(+), 5 deletions(-) -- 1.8.4.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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