Re: Clearing O_NONBLOCK from a pipe may lose data

On 2015-02-24 Corinna Vinschen wrote: > On Feb 24 16:16, Lasse Collin wrote: > > I'm going to release xz 5.2.1 in a day or two. Should that release > > have a workaround for this Cygwin bug? The workaround would avoid > > using O_NONBLOCK on stdout. It adds a race condit

Re: Unexpected EINVAL from pthread_join

On 2015-02-24 Corinna Vinschen wrote: > On Feb 24 15:54, Lasse Collin wrote: > > Many other pthread functions are similar in sense that they must > > never return EINTR. A bug similar to the one in pthread::join exist > > in pthread_mutex::lock. If SA_RESTART isn

Re: Clearing O_NONBLOCK from a pipe may lose data

On 2015-02-24 Corinna Vinschen wrote: > On Feb 24 08:16, Thomas Wolff wrote: > > Am 23.02.2015 um 13:23 schrieb Corinna Vinschen: > > >On Feb 23 11:56, Corinna Vinschen wrote: > > >>On Feb 22 22:07, Lasse Collin wrote: > > >>>Alternative idea: Wo

Re: Unexpected EINVAL from pthread_join

d_mutex::lock. If SA_RESTART isn't used, signals can make multiple threads get a lock on the same mutex at the same time. A test program is attached. Adding cw_sig_restart to the cygwait call in pthread_mutex::lock fixes this. -- Lasse Collin | IRC: Larhzu @ IRCnet & Freenode // gcc -std

Unexpected EINVAL from pthread_join

handling the return value assumes that only WAIT_OBJECT_0 and WAIT_CANCELED are possible. The default section of the switch statement has a comment "should never happen" and it returns EINVAL. It might be that the problem occurs only when SA_RESTART isn't used. -- Lasse Collin

Re: Clearing O_NONBLOCK from a pipe may lose data

(I have now subscribed to the list to get everyone's replies. Sorry for breaking the message thread.) Eric Blake wrote: > On 02/20/2015 01:21 PM, Lasse Collin wrote: > > The above Cygwin behavior would make it very easy to add a > > workaround to xz for the pipe-data-loss p

Re: Clearing O_NONBLOCK from a pipe may lose data

the workaround idea will cause trouble in the future when the bug in Cygwin gets fixed. -- Lasse Collin | IRC: Larhzu @ IRCnet & Freenode -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple

Clearing O_NONBLOCK from a pipe may lose data

.0, I investigated that first. There also seems to be something wrong with xz 5.2.0 in threaded mode under Cygwin which needs more investigation (random pthread_join() failures cause assertion failures if xz was built with --enable-debug). -- Lasse Collin | IRC: Larhzu @ IRCnet & Freenode // gcc -

Re: Antivirus strikes back (probably) (Was: Intermittent failures retrieving process exit codes)

On 2013-11-26 Denis Excoffier wrote: > On 2013-11-25 à 21:58 +02:00, Lasse Collin wrote: > > If you haven't already tried, please compile both 5.1.2alpha and > > 5.1.3alpha from source while keeping everything else unchanged, and > > see if the bug really only occurs

Re: Intermittent failures retrieving process exit codes

gwin or Windows. If you haven't already tried, please compile both 5.1.2alpha and 5.1.3alpha from source while keeping everything else unchanged, and see if the bug really only occurs with 5.1.3alpha. -- Lasse Collin | IRC: Larhzu @ IRCnet & Freenode -- Problem reports:

Re: Shortcut problem on Win XP

ions: http://php.net/manual/en/ref.exec.php -- /Lasse -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/

Re: plz answer these questions about Cygwin

evement of cygwin? It emulates UNIX under Windows. /Lasse -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/

Re: Quesion for Bash Fork Resource Temporily Unavailable

Question NS wrote: [SNIP] You're not by any chance using make with the -j option, are you? /Lasse -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.htm

Re: Trouble Sending Printer Codes from Perl to Printer

Igor Pechtchanski wrote: [SNIP] (parens are optional, Not in the coding guidelines at work... :-) but the main thing is that there can't be a comma after FH in the print statement). Oops, yes that's correct... :-) -- /Lasse -- Unsubscribe info: http://cygwin.com/ml/#u

Re: Trouble Sending Printer Codes from Perl to Printer

/search?q=perl+piped+open -- /Lasse -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/

Re: ls when acl() is busy [was: ls slow on top-level directory]

there is no distinction in Windows between the meta data and the file. If the file is locked, the meta data is too and vice versa. So a locked file tells you nothing about the existence of ACLs on this file. See my other post in this thread. -- /Lasse -- Unsubscribe info: http://cy

Re: ls when acl() is busy

er the result of this discussion is, the most important part is, that the failing call to acl() shouldn't result in ls printing an error message in this case. Agreed. /Lasse -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/

Re: ls when acl() is busy [was: ls slow on top-level directory]

t "there's more to it than what is shown" and I think that would be right thing to convey for busy files. I think this behaviour would be the least surprising... -- /Lasse -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com

Re: Problem installing CPAN module

t sure what to do about that... But at least it builds now.. ;-) -- /Lasse -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/