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| author | Thomas Schwinge <thomas@codesourcery.com> | 2013-01-08 21:03:52 +0100 |
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| committer | Thomas Schwinge <thomas@codesourcery.com> | 2013-01-08 21:03:52 +0100 |
| commit | a91114fc89dd554494801349e57bd5d29454a8b1 (patch) | |
| tree | f1d86e5402becb0560ba2d42ea5b018ee64be800 /open_issues/select_vs_signals.mdwn | |
| parent | 9c30d20f22b518f4505d405df41210644ecd51a3 (diff) | |
| parent | b2a0cdbf0cc6d70d1b00301f8808111024bed962 (diff) | |
| download | web-a91114fc89dd554494801349e57bd5d29454a8b1.tar.gz web-a91114fc89dd554494801349e57bd5d29454a8b1.tar.bz2 web-a91114fc89dd554494801349e57bd5d29454a8b1.zip | |
Merge remote-tracking branch 'savannah/master'
Diffstat (limited to 'open_issues/select_vs_signals.mdwn')
| -rw-r--r-- | open_issues/select_vs_signals.mdwn | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/open_issues/select_vs_signals.mdwn b/open_issues/select_vs_signals.mdwn index bbd69d00..927b888e 100644 --- a/open_issues/select_vs_signals.mdwn +++ b/open_issues/select_vs_signals.mdwn @@ -20,6 +20,19 @@ IRC, freenode, #hurd, 2011-04-02 <youpi> the sudo bug is select() not being able to get interrupted by signals +IRC, freenode, #hurd, 2012-01-05 + + <youpi> it's a know issue in select + <youpi> it's not interruptible by a SIGALRM for instance + <youpi> which is what ntpdate uses + <youpi> when __io_select is used, it *is* interruptible + <youpi> but when __mach_msg is used, it is *not* interruptible + <youpi> it happens that by luck, ntpdate uses just one fd, and thus it's __io_select which is used, and thus it gets an interruption after 1s (instead of after 60s, the timeout) + <youpi> with braunr's patch, it's __mach_msg which is used to wait, and thus the interruption doesn't happen, and we have to wait 60s, the timeout... + <youpi> so braunr's patch is still correct, it's the __mach_msg call which we do need to make interruptible (it was already on the todolist) + +Proposed patch on http://cygwin.com/ml/libc-alpha/2013-01/msg00189.html + --- See also [[select]] and [[select_bogus_fd]]. |