newlib-cygwin/winsup
Takashi Yano 9ae51bcc51 Cygwin: signal: Fix another deadlock between main and sig thread
In _cygtls::handle_SIGCONT(), the sig thread waits for the main thread
to process the signal without unlocking the TLS area. This causes a
deadlock if the main thread tries to acquire a lock for the TLS area
in the meantime. With this patch, unlock the TLS before calling yield()
in handle_SIGCONT().

Addresses: https://cygwin.com/pipermail/cygwin/2024-November/256744.html
Fixes: 26158dc3e9c2("* exceptions.cc (sigpacket::process): Lock _cygtls area of thread before accessing it.")
Reported-by: Christian Franke <Christian.Franke@t-online.de>
Reviewed-by: Corinna Vinschen <corinna@vinschen.de>
Signed-off-by: Takashi Yano <takashi.yano@nifty.ne.jp>
2024-11-28 20:25:27 +09:00
..
CVSChangeLogs.old
cygserver Revert "sys/types.h: Don't include sys/_stdint.h" 2022-05-04 15:08:44 +02:00
cygwin Cygwin: signal: Fix another deadlock between main and sig thread 2024-11-28 20:25:27 +09:00
doc Cygwin: FS_IOC_[GS]ETFLAGS: handle pinned and unpinned attributes 2024-03-08 21:54:58 +01:00
testsuite Cygwin: remove warnings from testsuite build 2024-01-19 15:11:32 +01:00
utils Add Windows Server 2025 build number 2024-11-19 17:32:51 +01:00
CONTRIBUTORS Cygwin: Add Ben Wijen to list of contributors 2021-01-18 12:01:19 +01:00
COPYING
COPYING.LIB
CYGWIN_LICENSE
Makefile.am Cygwin: Conditionally build documentation 2021-12-17 22:28:16 +00:00
Makefile.am.common Cygwin: automake: change @INCLUDES@ to @AM_CPPFLAGS@ to avoid warnings 2021-04-29 11:28:14 +02:00
README
acinclude.m4 Cygwin: Reorganize cygwin source dir 2022-08-05 12:02:11 +02:00
autogen.sh Cygwin: autogen.sh: Allow running from any directory 2021-05-06 10:56:20 +02:00
configure.ac Cygwin: testsuite: Drop using DejaGnu to run tests 2023-07-22 17:16:37 +01:00

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