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From: Tom Tromey <tom@tromey.com>
To: Pedro Alves <palves@redhat.com>
Cc: "Aktemur\, Tankut Baris" <tankut.baris.aktemur@intel.com>,
	 "gdb-patches\@sourceware.org" <gdb-patches@sourceware.org>,
	 "Paunovic\, Aleksandar" <aleksandar.paunovic@intel.com>
Subject: Re: [PATCH] Switch the inferior too in switch_to_program_space_and_thread (Re: [PATCH v2 08/24] Introduce switch_to_inferior_no_thread)
Date: Fri, 10 Jan 2020 14:41:00 -0000	[thread overview]
Message-ID: <87lfqfwfc5.fsf@tromey.com> (raw)
In-Reply-To: <9039e000-1d8c-ffcc-60bd-659b3a983a43@redhat.com> (Pedro Alves's	message of "Fri, 10 Jan 2020 02:02:58 +0000")

>>>>> "Pedro" == Pedro Alves <palves@redhat.com> writes:

Pedro> The crash happens while doing a breakpoint re-set, called by
Pedro> clear_symtab_users at the tail end of (3).  That is, while recreating
Pedro> breakpoints for the current program space, which is the program space
Pedro> we're tearing down.  During breakpoint re-set, we try to switch to the
Pedro> new location's pspace (the current pspace set in (1), so the pspace
Pedro> we're tearing down) with switch_to_program_space_and_thread, and that
Pedro> hits the failed assertion.

Whatever happened to fine-grained breakpoint resetting?
Among other things maybe that would help with this sort of problem.

Pedro> I'm not hard set on this approach though; I can go with adding the
Pedro> symfile_add_flags parameter to program_space::free_all_objfiles if
Pedro> people prefer that.

This approach seems fine.
Longer term I would like to get rid of clear_symtab_users.  Maybe it
could be replaced with more precisely targeted observers instead.

thanks,
Tom


  parent reply	other threads:[~2020-01-10 14:41 UTC|newest]

Thread overview: 71+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-17 22:50 [PATCH v2 00/24] Multi-target support Pedro Alves
2019-10-17 22:50 ` [PATCH v2 10/24] Some get_last_target_status tweaks Pedro Alves
2019-10-17 22:50 ` [PATCH v2 03/24] Make "show remote exec-file" inferior-aware Pedro Alves
2019-10-17 22:50 ` [PATCH v2 02/24] Don't rely on inferior_ptid in record_full_wait Pedro Alves
2019-11-01 14:54   ` Tom Tromey
2019-12-20 17:49     ` Pedro Alves
2019-12-20 18:57       ` Tom Tromey
2019-10-17 22:50 ` [PATCH v2 15/24] Avoid another inferior_ptid reference in gdb/remote.c Pedro Alves
2019-10-17 22:50 ` [PATCH v2 11/24] tfile_target::close: trace_fd can't be -1 Pedro Alves
2019-10-17 22:50 ` [PATCH v2 17/24] Fix reconnecting to a gdbserver already debugging multiple processes, II Pedro Alves
2019-10-17 22:50 ` [PATCH v2 01/24] Preserve selected thread in all-stop w/ background execution Pedro Alves
2019-11-01 13:20   ` Tom Tromey
2019-12-20 17:22     ` Pedro Alves
2019-12-20 18:54       ` Tom Tromey
2019-12-20 18:57         ` Pedro Alves
2019-12-20 18:57           ` Tom Tromey
2019-10-17 22:50 ` [PATCH v2 16/24] Fix reconnecting to a gdbserver already debugging multiple processes, I Pedro Alves
2019-10-17 22:50 ` [PATCH v2 06/24] Don't check target is running in remote_target::mourn_inferior Pedro Alves
2019-10-17 22:50 ` [PATCH v2 21/24] Revert 'Remove unused struct serial::name field' Pedro Alves
2019-10-17 22:50 ` [PATCH v2 12/24] Use all_non_exited_inferiors in infrun.c Pedro Alves
2019-10-17 22:50 ` [PATCH v2 09/24] switch inferior/thread before calling target methods Pedro Alves
2019-10-17 22:51 ` [PATCH v2 04/24] exceptions.c:print_flush: Remove obsolete check Pedro Alves
2019-10-17 22:51 ` [PATCH v2 22/24] Add "info connections" command, "info inferiors" connection number/string Pedro Alves
2019-10-17 22:51 ` [PATCH v2 18/24] Multi-target support Pedro Alves
2020-01-11  3:12   ` Simon Marchi
2020-01-12  1:58     ` [pushed] Remove last traces of discard_all_inferiors (Re: [PATCH v2 18/24] Multi-target support) Pedro Alves
2020-01-12 20:17   ` [PATCH v2 18/24] Multi-target support Simon Marchi
2020-01-13 15:19     ` Pedro Alves
2020-01-13 16:37       ` Simon Marchi
2020-01-12 22:30   ` Simon Marchi
2020-01-13 15:59     ` Pedro Alves
2020-01-17  4:03   ` Simon Marchi
2020-01-17 16:19     ` Simon Marchi
2020-01-17 15:18   ` Simon Marchi
2020-05-16  8:16   ` Andreas Schwab
2020-05-16 11:33     ` Fix IA-64 GNU/Linux build (Re: [PATCH v2 18/24] Multi-target support) Pedro Alves
2019-10-17 22:51 ` [PATCH v2 19/24] Add multi-target tests Pedro Alves
2019-10-17 22:57 ` [PATCH v2 05/24] Make target_ops::has_execution take an 'inferior *' instead of a ptid_t Pedro Alves
2019-10-17 22:57 ` [PATCH v2 23/24] Require always-non-stop for multi-target resumptions Pedro Alves
2019-11-01 14:51   ` Tom Tromey
2019-12-30 18:30     ` Pedro Alves
2019-12-31 20:06       ` Tom Tromey
2019-10-17 22:57 ` [PATCH v2 07/24] Delete unnecessary code from kill_command Pedro Alves
2019-10-17 22:59 ` [PATCH v2 13/24] Delete exit_inferior_silent(int pid) Pedro Alves
2019-10-17 22:59 ` [PATCH v2 20/24] gdbarch-selftests.c: No longer error out if debugging something Pedro Alves
2019-10-17 22:59 ` [PATCH v2 24/24] Multi-target: NEWS and user manual Pedro Alves
2019-10-17 22:59 ` [PATCH v2 08/24] Introduce switch_to_inferior_no_thread Pedro Alves
2019-11-07  9:14   ` Paunovic, Aleksandar
2019-12-20 18:50     ` Pedro Alves
2019-12-23 19:30       ` [PATCH] Switch the inferior too in switch_to_program_space_and_thread (Re: [PATCH v2 08/24] Introduce switch_to_inferior_no_thread) Pedro Alves
2020-01-08 15:48         ` Aktemur, Tankut Baris
2020-01-10  2:03           ` Pedro Alves
     [not found]             ` <BYAPR11MB30305218B921F31040FE4C1EC4380@BYAPR11MB3030.namprd11.prod.outlook.com>
2020-01-10 12:18               ` Pedro Alves
2020-01-10 14:41             ` Tom Tromey [this message]
2020-01-10 20:03               ` Pedro Alves
2019-10-17 23:00 ` [PATCH v2 14/24] Tweak handling of remote errors in response to resumption packet Pedro Alves
2019-10-18 20:23 ` [PATCH v2 00/24] Multi-target support John Baldwin
2019-10-29 19:13   ` Pedro Alves
2020-01-09 19:32     ` John Baldwin
2020-01-09 19:50       ` Pedro Alves
2020-01-10 13:49         ` Aktemur, Tankut Baris
2020-01-10 15:40           ` [PATCH] Switch the inferior before outputting its id in "info inferiors" (Re: [PATCH v2 00/24] Multi-target support) Pedro Alves
2019-10-20 11:41 ` [PATCH v2 00/24] Multi-target support Philippe Waroquiers
2019-10-29 19:56   ` Pedro Alves
2019-11-01 14:56 ` Tom Tromey
2020-01-10 20:13 ` Pedro Alves
2020-08-04  3:30   ` Kevin Buettner
2020-08-06 15:16     ` Pedro Alves
2020-08-06 17:49       ` Tom Tromey
2020-08-07 22:43       ` Kevin Buettner
2020-08-12 18:45         ` Pedro Alves

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