From: Petr Sumbera <petr.sumbera@oracle.com>
To: Pedro Alves <palves@redhat.com>, gdb@sourceware.org
Subject: Re: Solaris - procfs: couldn't find pid 32748 (kernel thread 21) in procinfo list
Date: Tue, 2 Jun 2020 09:32:08 +0200 [thread overview]
Message-ID: <51ff2398-4a7d-eb07-be98-0ae92673e152@oracle.com> (raw)
In-Reply-To: <0570473c-1181-2269-06a0-0f6d4fc6b178@redhat.com>
On 01.06.2020 21:12, Pedro Alves wrote:
> On 6/1/20 12:39 PM, Petr Sumbera via Gdb wrote:
>> The issue seems to be that the LWP exits and the status->kind is set to TARGET_WAITKIND_SPURIOUS:
>>
>> https://sourceware.org/git/?p=binutils-gdb.git;a=blob;f=gdb/procfs.c;h=f6c6b0e71c16224d3e7345ca09e011cdcf06349a;hb=HEAD#l2214
>>
>> But instantly it's added into the list again here:
>>
>> https://sourceware.org/git/?p=binutils-gdb.git;a=blob;f=gdb/infrun.c;h=95fc3bfe45930b53c33cb4de165db9c070449ad8;hb=HEAD#l5200
>>
>> But there is no longer such LWP in /proc.
>>
>> Any suggestion?
Thanks for looking at it!
> Either:
>
> - replace TARGET_WAITKIND_SPURIOUS with TARGET_WAITKIND_THREAD_EXITED, or,
With this I'm getting:
[LWP 21 exited]
[LWP 21 exited]
/builds/psumbera/userland-gdb-procinfo/components/gdb/gdb-9.2/gdb/thread.c:459:
internal-error: void delete_thread_1(thread_info*, bool): Assertion `thr
!= nullptr' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
> - replace
> status->kind = TARGET_WAITKIND_SPURIOUS;
> return retval;
> with
> goto wait_again;
> instead.
and with this:
[LWP 20 exited]
[LWP 20 exited]
/builds/psumbera/userland-gdb-procinfo/components/gdb/gdb-9.2/gdb/thread.c:459:
internal-error: void delete_thread_1(thread_info*, bool): Assertion `thr
!= nullptr' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
--
Note that in both cases there are TWO exits for one LWP. But LWP numbers
differ.
Any other comment?
Thanks!
Petr
next prev parent reply other threads:[~2020-06-02 7:34 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-28 15:29 Petr Sumbera
2020-05-28 16:01 ` Rainer Orth
2020-06-01 12:47 ` Petr Sumbera
2020-06-01 11:39 ` Petr Sumbera
2020-06-01 19:12 ` Pedro Alves
2020-06-02 7:32 ` Petr Sumbera [this message]
2020-06-02 14:53 ` Pedro Alves
2020-06-02 16:30 ` Petr Sumbera
2020-06-02 17:14 ` Pedro Alves
2020-06-03 13:09 ` Petr Sumbera
2020-06-08 9:51 ` Petr Sumbera
2020-06-08 13:47 ` Pedro Alves
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