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Date: Sun, 25 May 2025 12:20:37 -0700 (PDT)
To: Brian Inglis via Cygwin <cygwin@cygwin.com>
Subject: Re: openssl and libcurl issue with cargo
In-Reply-To: <0250a353-4693-4bdd-918d-32911eb74463@SystematicSW.ab.ca>
Message-ID: <20954d98-2a66-49f8-731c-ae34767d96f0@jdrake.com>
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 <a83064f3-800e-419c-afca-4791bf8328c0@SystematicSW.ab.ca>
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From: Jeremy Drake via Cygwin <cygwin@cygwin.com>
Reply-To: Jeremy Drake <cygwin@jdrake.com>
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On Sun, 25 May 2025, Brian Inglis via Cygwin wrote:

> On 2025-05-25 12:30, Jeremy Drake wrote:
> > Cargo issue (manifests as a hang, but running under gdb shows a SIGSEGV)
> > still reproduces without the curl patch :(
>
> Could you please post the gdb backtrace and build details or sufficient info
> to
> diagnose where the root cause originates if possible?

Thread 11 "cargo" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 28108.0xe964]
0x0000000a0168d330 in ?? ()
(gdb) bt
#0  0x0000000a0168d330 in ?? ()
#1  0x00007ff8de62971c in pthread_testcancel ()
    at /usr/src/debug/cygwin-3.7.0-0.98.gb39b510c1ce6/winsup/cygwin/thread.cc:399
#2  pthread_rwlock_wrlock (rwlock=0xa00059910)
    at /usr/src/debug/cygwin-3.7.0-0.98.gb39b510c1ce6/winsup/cygwin/thread.cc:4374
#3  0x00007ff8de70cd94 in _sigfe () at sigfe.s:35
#4  0x00000003ff76e3f9 in CRYPTO_THREAD_write_lock (lock=<optimized out>)
    at crypto/threads_pthread.c:110
#5  0x00000003ff761922 in init_thread_remove_handlers (
    handsin=handsin@entry=0x0) at crypto/initthread.c:178
#6  0x00000003ff761d43 in OPENSSL_thread_stop () at crypto/initthread.c:235
#7  0x00000003ff5c3f1d in DllMain (hinstDLL=<optimized out>,
    fdwReason=<optimized out>, lpvReserved=<optimized out>)
    at /usr/src/debug/curl-8.13.0-1/lib/dllmain.c:74
#8  0x00007ff952c58baf in ntdll!RtlActivateActivationContextUnsafeFast ()
   from /cygdrive/c/Windows/SYSTEM32/ntdll.dll
#9  0x00007ff952c593ec in ntdll!LdrShutdownThread ()
   from /cygdrive/c/Windows/SYSTEM32/ntdll.dll
#10 0x00007ff952c8afce in ntdll!RtlExitUserThread ()
   from /cygdrive/c/Windows/SYSTEM32/ntdll.dll
#11 0x00007ff8de63b2a1 in exit_thread (res=res@entry=0)
    at /usr/src/debug/cygwin-3.7.0-0.98.gb39b510c1ce6/winsup/cygwin/sigproc.cc:587
#12 0x00007ff8de62302a in pthread::exit (this=0xa03b61cd0, value_ptr=0x0)
    at /usr/src/debug/cygwin-3.7.0-0.98.gb39b510c1ce6/winsup/cygwin/thread.cc:584
#13 0x00007ff8de623a43 in pthread::thread_init_wrapper (arg=0xa03b61cd0)
    at /usr/src/debug/cygwin-3.7.0-0.98.gb39b510c1ce6/winsup/cygwin/thread.cc:2038
#14 0x00007ff8de5c5021 in pthread_wrapper (arg=<optimized out>)
    at /usr/src/debug/cygwin-3.7.0-0.98.gb39b510c1ce6/winsup/cygwin/create_posix_thread.cc:79
#15 pthread_wrapper (arg=<optimized out>)
    at /usr/src/debug/cygwin-3.7.0-0.98.gb39b510c1ce6/winsup/cygwin/create_posix_thread.cc:39
#16 0x0000000000000000 in ?? ()

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