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[bug #64806] "invalid output sync mutex" on windows
From: |
Gergely Pinter |
Subject: |
[bug #64806] "invalid output sync mutex" on windows |
Date: |
Mon, 15 Jan 2024 11:08:23 -0500 (EST) |
Follow-up Comment #22, bug#64806 (group make):
I am afraid, we are now somewhat over my Windows competence, here is what I
was able to derive. Variable osync_handle is (HANDLE) 0x120:
(gdb) attach 14472
(gdb) thread 1
(gdb) bt
#0 0x771f2bcc in ntdll!ZwWaitForSingleObject ()
from C:\WINDOWS\SysWOW64\ntdll.dll
#1 0x762fac59 in WaitForSingleObjectEx ()
from C:\WINDOWS\SysWOW64\KernelBase.dll
#2 0x762fabb2 in WaitForSingleObject ()
from C:\WINDOWS\SysWOW64\KernelBase.dll
#3 0x009070ce in osync_acquire () at src/w32/w32os.c:476
#4 0x008f8148 in output_dump (out=out@entry=0x3a848a8) at src/output.c:280
#5 0x008f28ce in reap_children (block=<optimized out>, block@entry=0,
err=err@entry=0) at src/job.c:1058
#6 0x008f3aaf in new_job (file=0x3a7c548) at src/job.c:1866
#7 0x008ffe5b in remake_file (file=0x3a7c548) at src/remake.c:1313
#8 update_file_1 (depth=<optimized out>, file=<optimized out>)
at src/remake.c:905
#9 update_file (file=file@entry=0x3a7c548, depth=<optimized out>)
at src/remake.c:367
#10 0x009004b7 in check_dep (file=0x3a7c548, depth=depth@entry=1,
this_mtime=<optimized out>, must_make_ptr=<optimized out>,
must_make_ptr@entry=0x1bff054) at src/remake.c:1100
#11 0x008ff2ba in update_file_1 (depth=<optimized out>, file=<optimized out>)
at src/remake.c:633
#12 update_file (file=file@entry=0x3a7c9c8, depth=<optimized out>)
at src/remake.c:367
#13 0x0090077e in update_goal_chain (goaldeps=<optimized out>)
at src/remake.c:184
#14 0x009143ce in main (argc=<optimized out>, argv=<optimized out>,
envp=<optimized out>) at src/main.c:2921
(gdb) f 3
#3 0x009070ce in osync_acquire () at src/w32/w32os.c:476
476 DWORD result = WaitForSingleObject (osync_handle, INFINITE);
(gdb) p osync_handle
$1 = (HANDLE) 0x120
Now the interpretation of this handle is beyond my understanding, since
Process Explorer tells that it is a File handle ("\Device\ConDrv"), see
attached image -- note that I may seriously misunderstand something here.
Maybe this is related to the original submission by Michael who in comment #5
suspected some use after free situation causing apparently random strings
printed in their case (just guessing)?
(file #55572)
_______________________________________________________
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- Re: [bug #64806] "invalid output sync mutex" on windows, (continued)
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- [bug #64806] "invalid output sync mutex" on windows, Gergely Pinter, 2024/01/15
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