From: Richard Henderson <richard.henderson@linaro.org>
To: Ilya Leoshkevich <iii@linux.ibm.com>, Laurent Vivier <laurent@vivier.eu>
Cc: qemu-devel@nongnu.org, qemu-stable@nongnu.org
Subject: Re: [PATCH] linux-user/elfload: Fix pr_pid values in core files
Date: Fri, 2 Aug 2024 07:45:42 +1000 [thread overview]
Message-ID: <113a8d28-006c-4ab7-b66c-666c4cc52dde@linaro.org> (raw)
In-Reply-To: <20240801202340.21845-1-iii@linux.ibm.com>
On 8/2/24 06:23, Ilya Leoshkevich wrote:
> Analyzing qemu-produced core dumps of multi-threaded apps runs into:
>
> (gdb) info threads
> [...]
> 21 Thread 0x3ff83cc0740 (LWP 9295) warning: Couldn't find general-purpose registers in core file.
> <unavailable> in ?? ()
>
> The reason is that all pr_pid values are the same, because the same
> TaskState is used for all CPUs when generating NT_PRSTATUS notes.
>
> Fix by using TaskStates associated with individual CPUs.
>
> Cc:qemu-stable@nongnu.org
> Fixes: 243c47066253 ("linux-user/elfload: Write corefile elf header in one block")
> Signed-off-by: Ilya Leoshkevich<iii@linux.ibm.com>
> ---
> linux-user/elfload.c | 8 +++-----
> 1 file changed, 3 insertions(+), 5 deletions(-)
Oops,
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
next prev parent reply other threads:[~2024-08-01 21:46 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-01 20:23 [PATCH] linux-user/elfload: Fix pr_pid values in core files Ilya Leoshkevich
2024-08-01 21:45 ` Richard Henderson [this message]
2024-08-02 13:20 ` Philippe Mathieu-Daudé
2024-08-02 13:23 ` Ilya Leoshkevich
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