Corinna wrote:
> Not really. I have no idea why this fails for you. Does an strace
> show anything suspicious?
Yes, there's an exception, it looks like in WFMO. It's
happens when closing handles after forking sh.exe for the
second popen(). strace excerpt is below.
The exception didn't happen after the first popen(). And I
tried running with a minimal environment (env -i PATH=/usr/bin),
which didn't help.
David
1 1 [main] sh (426948) **********************************************
39 40 [main] sh (426948) Program name: C:\cygwin64\bin\sh.exe (windows
pid 426948)
16 56 [main] sh (426948) OS version: Windows NT-6.1
15 71 [main] sh (426948) **********************************************
59 130 [main] sh (426948) sigprocmask: 0 = sigprocmask (0, 0x1802BCC08,
0x0)
64 194 [main] sh 426948 child_copy: cygheap - hp 0x114 low 0x1802DB410,
high 0x1802E2CD8, res 1
20 214 [main] sh 426948 child_copy: done
51 265 [main] sh 426948 open_shared: name shared.5, n 5, shared
0x180030000 (wanted 0x180030000), h 0x6C, *m 6
24 289 [main] sh 426948 user_heap_info::init: heap base 0x600000000,
heap top 0x600000000, heap size 0x20000000 (536870912)
22 311 [main] sh 426948 open_shared: name (null), n 1, shared
0x180020000 (wanted 0x180020000), h 0x60, *m 6
13 324 [main] sh 426948 user_info::create: opening user shared for '' at
0x180020000
16 340 [main] sh 426948 user_info::create: user shared version AB1FCCE8
35 375 [main] sh (426948) open_shared: name cygpid.426948, n 426948,
shared 0x180010000 (wanted 0x180010000), h 0x74, *m 6
21 396 [main] sh 426948 pinfo::thisproc: myself dwProcessId 426948
19 415 [main] sh 426948 fhandler_pty_slave::fixup_after_fork: /dev/pty0
inherited, usecount 4
19 434 [main] sh 426948 dtable::fixup_close: closing fd 1 since it is an
archetype
18 452 [main] sh 426948 fhandler_base::close_with_arch: line 1140:
/dev/pty0<0x1802DF208> usecount + -1 = 3
16 468 [main] sh 426948 fhandler_base::close_with_arch: not closing
archetype
18 486 [main] sh 426948 fhandler_pty_slave::fixup_after_fork: /dev/pty0
inherited, usecount 3
20 506 [main] sh 426948 fhandler_base::fixup_after_exec: here for
'/dev/fd/pipe:[3]'
16 522 [main] sh 426948 close: close(3)
--- Process 426948, exception c0000005 at 00000001800F21EF
13416 1272862 [main] nested_popen 426736 child_info::sync: pid 426948, WFMO
returned 1, exit_code 0xC0000005, res 0
0 1272862 [waitproc] nested_popen 426736
pinfo::maybe_set_exit_code_from_windows: pid 426948, exit value - old 0x0,
windows 0xC0000005, cygwin 0x800000B
53 1272915 [waitproc] nested_popen 426736 sig_send: sendsig 0x80, pid
426736, signal 20, its_me 1
22 1272937 [waitproc] nested_popen 426736 sig_send: Not waiting for
sigcomplete. its_me 1 signal 20
22 1272959 [waitproc] nested_popen 426736 sig_send: returning 0x0 from
sending signal 20
13 1272972 [main] nested_popen 426736 fcntl64: fcntl(1, 2, ...)
19 1272991 [waitproc] nested_popen 426736 proc_waiter: exiting wait thread
for pid 426948
20 1273011 [sig] nested_popen 426736 sigpacket::process: signal 20 processing
35 1273046 [sig] nested_popen 426736 init_cygheap::find_tls: sig 20
-31 1273015 [main] nested_popen 426736 fcntl64: 0 = fcntl(1, 2, 0x0)
65 1273080 [main] nested_popen 426736 close: close(5)
-14 1273066 [sig] nested_popen 426736 sigpacket::process: using tls 0x22CE00
70 1273136 [sig] nested_popen 426736 sigpacket::process: signal 20 default
is currently ignore
1 1273137 [main] nested_popen 426736 fhandler_base::close: closing
'pipe:[5]' handle 0xE0
17 1273154 [sig] nested_popen 426736 sigpacket::process: returning 1
32 1273186 [sig] nested_popen 426736 proc_subproc: args: 5, 0
19 1273205 [sig] nested_popen 426736 proc_subproc: looking for processes to
reap, nprocs 2
2 1273207 [main] nested_popen 426736 close: 0 = close(5)
16 1273223 [sig] nested_popen 426736 proc_subproc: finished processing
terminated/stopped child
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