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From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org> To: gdb-prs@sourceware.org Subject: [Bug gdb/26761] thread.c:95: internal-error: thread_info* inferior_thread(): Assertion `current_thread_ != nullptr' failed Date: Mon, 27 Feb 2023 23:21:23 +0000 [thread overview] Message-ID: <bug-26761-4717-h5vB0EMCow@http.sourceware.org/bugzilla/> (raw) In-Reply-To: <bug-26761-4717@http.sourceware.org/bugzilla/> https://sourceware.org/bugzilla/show_bug.cgi?id=26761 --- Comment #15 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Kevin Buettner <kevinb@sourceware.org>: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=522044dc5fa76f9fef70fe746274daf09bbf64fe commit 522044dc5fa76f9fef70fe746274daf09bbf64fe Author: Kevin Buettner <kevinb@redhat.com> Date: Mon Feb 27 16:11:37 2023 -0700 Introduce gdb_exception_forced_quit This commit adds a new exception 'gdb_exception_forced_quit', reason code 'REASON_FORCED_QUIT', return mask 'RETURN_MASK_FORCED_QUIT', and a wrapper for throwing the exception, throw_forced_quit(). The addition of this exception plus supporting code will allow us to recognize that a SIGTERM has been received by GDB and then propagate recognition of that fact to the upper levels of GDB where it can be correctly handled. At the moment, when GDB receives a SIGTERM, it will attempt to exit via a series of calls from the QUIT checking code. However, before it can exit, it must do various cleanups, such as killing or detaching all inferiors. Should these cleanups be attempted while GDB is executing very low level code, such as reading target memory from within ps_xfer_memory(), it can happen that some of GDB's state is out of sync with regard to the cleanup code's expectations. In the case just mentioned, it's been observed that inferior_ptid and the current_thread_ are not in sync; this triggers an assert / internal error. This commit only introduces the exception plus supporting machinery; changes which use this new exception are in later commits in this series. Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=26761 Tested-by: Tom de Vries <tdevries@suse.de> Approved-by: Pedro Alves <pedro@palves.net> -- You are receiving this mail because: You are on the CC list for the bug.
next prev parent reply other threads:[~2023-02-27 23:21 UTC|newest] Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-10-20 16:07 [Bug gdb/26761] New: " vries at gcc dot gnu.org 2020-10-20 16:07 ` [Bug gdb/26761] " vries at gcc dot gnu.org 2020-11-25 21:05 ` marcdufresne at laposte dot net 2020-12-13 13:12 ` ddresser at bmc dot com 2020-12-14 19:04 ` simark at simark dot ca 2020-12-14 19:06 ` simark at simark dot ca 2021-02-17 22:34 ` Minima2014 at iCloud dot com 2021-09-16 1:17 ` parke.nexus at gmail dot com 2021-09-19 2:10 ` simark at simark dot ca 2021-09-19 3:43 ` parke.nexus at gmail dot com 2022-09-29 10:02 ` vries at gcc dot gnu.org 2022-09-29 12:07 ` vries at gcc dot gnu.org 2022-09-29 14:24 ` simark at simark dot ca 2022-09-29 14:42 ` vries at gcc dot gnu.org 2022-09-29 14:43 ` vries at gcc dot gnu.org 2022-09-29 15:22 ` vries at gcc dot gnu.org 2022-12-15 14:56 ` tromey at sourceware dot org 2023-02-27 23:21 ` cvs-commit at gcc dot gnu.org [this message] 2023-02-27 23:21 ` cvs-commit at gcc dot gnu.org 2023-02-27 23:21 ` cvs-commit at gcc dot gnu.org 2023-02-27 23:21 ` cvs-commit at gcc dot gnu.org 2023-02-27 23:21 ` cvs-commit at gcc dot gnu.org 2023-02-27 23:21 ` cvs-commit at gcc dot gnu.org 2023-02-27 23:21 ` cvs-commit at gcc dot gnu.org 2023-02-27 23:21 ` cvs-commit at gcc dot gnu.org 2023-03-09 22:44 ` kevinb at redhat dot com
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