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Re: [PATCH 1/2] Linux/x86: Update cancel_jmp_buf to match __jmp_buf_tag [BZ #22563]
- From: "H.J. Lu" <hjl dot tools at gmail dot com>
- To: "Senkevich, Andrew" <andrew dot senkevich at intel dot com>
- Cc: "Carlos O'Donell" <carlos at redhat dot com>, Florian Weimer <fweimer at redhat dot com>, Andreas Schwab <schwab at suse dot de>, GNU C Library <libc-alpha at sourceware dot org>
- Date: Wed, 24 Jan 2018 10:08:07 -0800
- Subject: Re: [PATCH 1/2] Linux/x86: Update cancel_jmp_buf to match __jmp_buf_tag [BZ #22563]
- Authentication-results: sourceware.org; auth=none
- References: <e7e3e22f-2bf7-eb69-e114-ae4352d816bb@redhat.com> <CAMe9rOqiSm6GfuXCAwL3zuuRO5mzdMtx3MkrxBpdgSC0nNCghw@mail.gmail.com> <4e80a87a-c90a-85a6-daf1-cbbf71d0bf58@redhat.com> <CAMe9rOpWgWPpM0pJ4nJ-8rN=merNXuSw8RaX_UfWsMeBN2gbJg@mail.gmail.com> <e9828d0b-675f-2608-7170-53aef29aae27@redhat.com> <CAMe9rOpKb8rBLL4LYnKZKBQY-6nZs51Hhwp8Xwk6KW8wwFVzrQ@mail.gmail.com> <CAMe9rOoqU7Tp7+H_cU4d7KOdEkuj6gLB2eR1LFgA2kqFge6wBQ@mail.gmail.com> <mvmmv2ghz87.fsf@suse.de> <CAMe9rOr6Lh3HQb7APjvbQWcC4kGf30Z9Vp2LVQhF_54b4PxkRA@mail.gmail.com> <b18ba18a-625c-bbbe-4cf6-8fc438e410e9@redhat.com> <20180121161557.GA31477@aurel32.net> <CAMe9rOp3qphrF7WDcGuHTdjQhJJD=wufMiJ-MWMBs-D=vG_3tg@mail.gmail.com> <D373487E0338A646909492FF43BA8BE356BCF169@irsmsx110.ger.corp.intel.com> <146fe611-dbc4-af4d-f737-194712daa835@redhat.com> <D373487E0338A646909492FF43BA8BE356BCF9C5@irsmsx110.ger.corp.intel.com>
On Tue, Jan 23, 2018 at 1:13 PM, Senkevich, Andrew
<andrew.senkevich@intel.com> wrote:
>> -----Original Message-----
>> From: Carlos O'Donell [mailto:carlos@redhat.com]
>> Sent: Tuesday, January 23, 2018 20:35
>> To: Senkevich, Andrew <andrew.senkevich@intel.com>; H.J. Lu
>> <hjl.tools@gmail.com>; Florian Weimer <fweimer@redhat.com>; Andreas
>> Schwab <schwab@suse.de>
>> Cc: GNU C Library <libc-alpha@sourceware.org>
>> Subject: Re: [PATCH 1/2] Linux/x86: Update cancel_jmp_buf to match
>> __jmp_buf_tag [BZ #22563]
>>
>> On 01/22/2018 06:44 AM, Senkevich, Andrew wrote:
>> > Looks like that.
>> > I will have ability to investigate it during tomorrow.
>>
>> Any idea what's going wrong?
>
> Currently not clear why but I see return from var_AddCallback () (from /usr/lib/x86_64-linux-gnu/libvlccore.so.9) to wrong address.
> And setjmp/longjmp doesn't break. Will continue tomorrow.
>
We opened a bug:
https://sourceware.org/bugzilla/show_bug.cgi?id=22743
Any help to track down the root cause is appreciated.
--
H.J.