On Sat, 09 Apr 2022 19:07:08 +0300 Alexey Izbyshev wrote: > On 2022-04-09 14:46, Takashi Yano wrote: > > On Sat, 09 Apr 2022 14:02:38 +0300 > > Alexey Izbyshev wrote: > >> > >> Missed the line in the link above: > >> https://cygwin.com/git?p=newlib-cygwin.git;a=blob;f=winsup/cygwin/fhandler_tty.cc;h=7bef6958c106c5e78cc90e014081022fd3a205bc;hb=cygwin-3_3_4-release#l1199 > > > > Thanks for finding that. It would be very helpfull if you could > > find another process which holds pcon_mutex and where it is stopping. > > ProcessHacker showed that the owner of the pcon mutex is bash.exe with > (Windows) PID 6276. However, Cygwin ps doesn't list such a process. Its > parent, however, has a Cygwin PID 37961 and is in the hanging tree: > > make(32651)-+-make(32656)-+-bash(37296)---find(38057) > | |-bash(37632)---find(38061) > | |-bash(37415)---find(38064) > | |-bash(37852)---find(38062) > | |-bash(37896)---find(38063) > | `-bash(37961)---javac(38032) > > `-make(32657)-+-bash(38025)---bash(38054)---bash(38055)---readlink(38056) > > `-bash(37722)---bash(37825)---bash(38058)-+-grep(38060) > > `-grep(38059) > > Since javac(38032) is a zombie, my guess is that missing bash.exe (win > 6276) is an intermediate process that Cygwin created when bash(37961) > forked to run javac. > > bash.exe (win 6276) has two threads. The first one is blocked at > ClosePseudoConsole() (which according to stack trace eventually calls > NtWaitForSingleObject()) [1] and the second one is at [2]. > > [1] > https://cygwin.com/git?p=newlib-cygwin.git;a=blob;f=winsup/cygwin/fhandler_tty.cc;h=7bef6958c106c5e78cc90e014081022fd3a205bc;hb=cygwin-3_3_4-release#l3615 > > [2] > https://cygwin.com/git?p=newlib-cygwin.git;a=blob;f=winsup/cygwin/sigproc.cc;h=02d875a7fc947d628ca933690ed43ef03d767d53;hb=cygwin-3_3_4-release#l1359 > > Hope this is helpful,
Thank you very much for the information. Can you check if the thread pty_master_fwd_thread() in root mintty is still alive? -- Takashi Yano <takashi.y...@nifty.ne.jp> -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
