Deadlock of the process tree when running make

Alexey Izbyshev
Sat Apr 9 11:00:59 GMT 2022

On 2022-04-09 13:17, Takashi Yano wrote:

> Attaching gdb to the hanging process and dumping stack by 'bt'
> command for each thread may diagnose more detail.

I decided to simply look at assembly at the point shown in ProcessHacker 
stack trace (cygwin1.dll!feinitialise+0x5ecab) to avoid disturbing the 
process by gdb. And it's clear that the hang is in 
fhandler_pty_slave::reset_switch_to_pcon() at [1]. I've checked that 
there were some changes in that function since 3.3.4. Could they fix 
this deadlock?



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