Package: libc6 Version: 2.28-10 Severity: important Tags: upstream patch -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512
Dear Maintainer, glibc after 2.26 (included) and before 2.30 hangs in pthread_rwlock_tryrwlock and pthread_rwlock_tryrdlock, the details and test cases can be found in https://sourceware.org/bugzilla/show_bug.cgi?id=23844#c14 This especially hits BIND 9.16 when using pthread_rwlock (instead of custom ISC rwlock). So, could you please fix this in buster? For sid, this will get fixed as part of regular updated to 2.30, The patch is quite small and the impact of pthread_rwlock_try(rw|rd)lock() hanging is pretty severe. Also quite hard to find - we spent couple of days hunting the bug in BIND 9 and it turned to be problem in glibc. Thanks, Ondrej - -- System Information: Debian Release: 10.3 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.19.0-8-amd64 (SMP w/8 CPU cores) Locale: LANG=en_IE.UTF-8, LC_CTYPE=en_IE.UTF-8 (charmap=UTF-8), LANGUAGE=en_IE:en (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) -----BEGIN PGP SIGNATURE----- iQKTBAEBCgB9FiEEw2Gx4wKVQ+vGJel9g3Kkd++uWcIFAl5Wl6hfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEMz NjFCMUUzMDI5NTQzRUJDNjI1RTk3RDgzNzJBNDc3RUZBRTU5QzIACgkQg3Kkd++u WcICsA//W4g/fPvaxg3h41PzZoEw6f5/Wc82KI8WHczUFQWQRnK+MVgrSjOhkI0E w6sZfAfE4fOJmZWh0ZNp9tXlaf05qFq86HBswJmrWLnSSd0LHB/PI59i+42dikQT Z3MquY1F6ouC4lzA5NrsPdaAof2qXcSRrua3e3SOAiIN9HO43XOZxhvE8uqFZJA4 ZswgXLnWcWZLkTfdiASzQ+Dp2oAo6OJFHTdgRveOnNAbmQAFB1ANLe/echpSE2PJ hrVD9RJwuL4/bLWYr9LwWdUM9IvZhh+QwjrSm52jcF40b9yHOcRnvZ8LZuWnf7gm CuB+ekJY0N6vDz1nFy4c8b6/vrK+grsfXFZyiwItD3sfE5rJORjeTT3VosmPyiSy LqAXfpiPKPlXGZhIe5ipxCJQ7k092brTjoxBmHuIpwDHE4u5FXqndRgh+qXKJYdQ WAnG2RrvZ6VWLpCUnYq1gC+f2B+0MB7rAfX8jSRoxRGKmI/ubyc7Z3vdBwxYeqo4 eQ0XqgnppUsqkTWDJpYB1KSuGfhCVmVR8gJ7oE/4qXkEOccHyzYo+u0ZYJ8KMS4v doLjWojTfd+NWRpN2b4+J8Vz2MBU0IdWVkuu17VbgQ04I/Qf3Ww7EEl1CITTrjUx jI0VrKo/nQj8+CkrA56B2hgynqhvni5ehs7uJ7IhAl6KRO10cF8= =z3LE -----END PGP SIGNATURE-----
