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authorAaron Tomlin <atomlin@redhat.com>2014-01-20 17:34:13 +0000
committerIngo Molnar <mingo@kernel.org>2014-01-25 12:13:33 +0100
commit270750dbc18a71b23d660df110e433ff9616a2d4 (patch)
tree9b0400fc3713bd02d31835e8d0315cfbd7ccd912 /crypto/pcompress.c
parent2397efb1bb17595b35f31abb40d95074ebc04f1b (diff)
hung_task: Display every hung task warning
When khungtaskd detects hung tasks, it prints out backtraces from a number of those tasks. Limiting the number of backtraces being printed out can result in the user not seeing the information necessary to debug the issue. The hung_task_warnings sysctl controls this feature. This patch makes it possible for hung_task_warnings to accept a special value to print an unlimited number of backtraces when khungtaskd detects hung tasks. The special value is -1. To use this value it is necessary to change types from ulong to int. Signed-off-by: Aaron Tomlin <atomlin@redhat.com> Reviewed-by: Rik van Riel <riel@redhat.com> Acked-by: David Rientjes <rientjes@google.com> Cc: oleg@redhat.com Link: http://lkml.kernel.org/r/1390239253-24030-3-git-send-email-atomlin@redhat.com [ Build warning fix. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'crypto/pcompress.c')
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