poll: Don't log in a signal handler #447
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qb_log calls malloc() and probably many other non-signal-safe functions, so don't call it in the signal handler. Thanks to Honza for spotting this Signed-off-by: Christine Caulfield <[email protected]>
jfriesse
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Nov 10, 2021
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Yeah, removing error messages is not really a good thing, but if the alternative is potential hang, we just need to balance things :/ |
kraj
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Nov 22, 2021
The most important fix in this release is that we no longer log errors inside the signal handler in loop_poll.c This could cause an application hang in some circumstances. Changelog is as follows: doxygen2man: print structure descriptions (ClusterLabs/libqb#443) Fix pthread returns (ClusterLabs/libqb#444) poll: Don't log in a signal handler (ClusterLabs/libqb#447) Bump library version for v2.0.4 Implement heap based timer list (ClusterLabs/libqb#439) build: Fix undefined pthread reference. (ClusterLabs/libqb#440) Signed-off-by: Wang Mingyu <[email protected]> Signed-off-by: Khem Raj <[email protected]>
daregit
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May 22, 2024
The most important fix in this release is that we no longer log errors inside the signal handler in loop_poll.c This could cause an application hang in some circumstances. Changelog is as follows: doxygen2man: print structure descriptions (ClusterLabs/libqb#443) Fix pthread returns (ClusterLabs/libqb#444) poll: Don't log in a signal handler (ClusterLabs/libqb#447) Bump library version for v2.0.4 Implement heap based timer list (ClusterLabs/libqb#439) build: Fix undefined pthread reference. (ClusterLabs/libqb#440) Signed-off-by: Wang Mingyu <[email protected]> Signed-off-by: Khem Raj <[email protected]>
daregit
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May 22, 2024
The most important fix in this release is that we no longer log errors inside the signal handler in loop_poll.c This could cause an application hang in some circumstances. Changelog is as follows: doxygen2man: print structure descriptions (ClusterLabs/libqb#443) Fix pthread returns (ClusterLabs/libqb#444) poll: Don't log in a signal handler (ClusterLabs/libqb#447) Bump library version for v2.0.4 Implement heap based timer list (ClusterLabs/libqb#439) build: Fix undefined pthread reference. (ClusterLabs/libqb#440) Signed-off-by: Wang Mingyu <[email protected]> Signed-off-by: Khem Raj <[email protected]>
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qb_log calls malloc() and probably many other non-signal-safe
functions, so don't call it in the signal handler.
Thanks to Honza for spotting this
Signed-off-by: Christine Caulfield [email protected]