[Bug remote/17397] New: i686-w64-mingw32 remote multiprocess debugging: thread.c:1002: internal-error: switch_to_thread: Assertion `inf != NULL' failed.

["jerome.gardou at reactos dot org" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=17397

            Bug ID: 17397
           Summary: i686-w64-mingw32 remote multiprocess debugging:
                    thread.c:1002: internal-error: switch_to_thread:
                    Assertion `inf != NULL' failed.
           Product: gdb
           Version: 7.8
            Status: NEW
          Severity: normal
          Priority: P2
         Component: remote
          Assignee: unassigned at sourceware dot org
          Reporter: jerome.gardou at reactos dot org

Created attachment 7788
  --> https://sourceware.org/bugzilla/attachment.cgi?id=7788&action=edit
Relevant GDB log.

Hello,

I am developing an homebrew gdb stub for ReactOS. Code can be found here:
http://git.reactos.org/?p=reactos.git;a=tree;f=reactos/drivers/base/kdgdb

As this is a kernel debugger, it is per se a multiprocess environment, and
advertised as such at connection time with GDB.

info thread triggers the following assert:
thread.c:1002: internal-error: switch_to_thread: Assertion `inf != NULL'
failed.

Attached is the relevant log with "debug remote" set to 1 and the core dump at
the time the failed assertion is raised.

To reduce noise, I didn't load any symbol files when producing the log.
(results are similar with them).

GDB 7.8 was compiled from source with ./configure --target=i686-w64-mingw32
--with-expat

I am ready and willing to give further details on this issue, as it hinders
further use of GDB in this environment.

Best regards
JÃrÃme

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