From: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
To: Torsten Duwe <duwe@lst.de>
Cc: Petr Mladek <pmladek@suse.com>,
Balbir Singh <bsingharora@gmail.com>,
Jessica Yu <jeyu@redhat.com>,
linux-kernel@vger.kernel.org,
Steven Rostedt <rostedt@goodmis.org>,
Jiri Kosina <jkosina@suse.cz>,
live-patching@vger.kernel.org, Miroslav Benes <mbenes@suse.cz>,
linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v8 8/8] livepatch: Detect offset for the ftrace location during build
Date: Tue, 16 Feb 2016 16:00:30 +0530 [thread overview]
Message-ID: <20160216103028.GA10730@linux.vnet.ibm.com> (raw)
In-Reply-To: <20160216082302.GA20522@lst.de>
* Torsten Duwe <duwe@lst.de> [2016-02-16 09:23:02]:
> On Tue, Feb 16, 2016 at 11:17:02AM +0530, Kamalesh Babulal wrote:
> > * Petr Mladek <pmladek@suse.com> [2016-02-12 17:45:17]:
> > > int test(int a)
> > > {
> > > + printk("%d\n", a);
> > > return ++a;
> > > }
> >
> > Thanks. This workaround, helped to load sample livepatch module.
>
> N.b.: if you try to livepatch/trace such a leaf function without
> global dependencies, it will crash if that function got called with
> a different TOC value. Hence this whole testing.
>
I am running out of ideas on how to generate this crash, any pointers
will be helpful.
> You may alternatively try my gcc patch ;-)
Thank you. I will give the patch a try.
Regards,
Kamalesh
next prev parent reply other threads:[~2016-02-16 10:31 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-10 17:29 [PATCH v8 0/8] ftrace with regs + live patching for ppc64 LE (ABI v2) Torsten Duwe
2016-01-28 15:32 ` [PATCH v8 8/8] livepatch: Detect offset for the ftrace location during build Torsten Duwe
2016-02-12 16:13 ` Balbir Singh
2016-02-12 16:45 ` Petr Mladek
2016-02-13 1:33 ` Balbir Singh
2016-02-16 5:47 ` Kamalesh Babulal
2016-02-16 8:23 ` Torsten Duwe
2016-02-16 10:30 ` Kamalesh Babulal [this message]
2016-02-16 10:39 ` Torsten Duwe
2016-02-16 13:57 ` Petr Mladek
2016-02-17 3:08 ` Michael Ellerman
2016-02-23 17:00 ` Torsten Duwe
2016-02-24 6:37 ` Balbir Singh
2016-02-24 6:55 ` Balbir Singh
2016-02-24 9:23 ` Torsten Duwe
2016-02-24 11:22 ` Balbir Singh
2016-02-24 7:51 ` Kamalesh Babulal
2016-02-10 16:21 ` [PATCH v8 1/8] ppc64 (le): prepare for -mprofile-kernel Torsten Duwe
2016-02-17 10:55 ` Michael Ellerman
2016-02-17 11:30 ` Torsten Duwe
2016-02-17 11:39 ` Michael Ellerman
2016-02-10 16:22 ` [PATCH v8 2/8] ppc64le FTRACE_WITH_REGS implementation Torsten Duwe
2016-02-10 16:22 ` [PATCH v8 3/8] ppc use ftrace_modify_all_code default Torsten Duwe
2016-02-10 16:25 ` [PATCH v8 4/8] ppc64 ftrace_with_regs configuration variables Torsten Duwe
2016-02-11 7:48 ` Balbir Singh
2016-02-11 8:39 ` Kamalesh Babulal
2016-02-11 9:35 ` Balbir Singh
2016-02-11 13:00 ` Murali Sampath
2016-02-11 13:00 ` Murali Sampath
2016-02-11 8:42 ` Torsten Duwe
2016-02-11 9:34 ` Balbir Singh
2016-02-15 10:27 ` Michael Ellerman
2016-02-15 12:56 ` Jiri Kosina
2016-02-15 14:04 ` Torsten Duwe
2016-02-15 22:21 ` Torsten Duwe
2016-02-16 4:53 ` Balbir Singh
2016-02-16 10:09 ` Michael Ellerman
2016-02-16 10:35 ` Torsten Duwe
2016-02-10 16:27 ` [PATCH v8 5/8] ppc64 ftrace_with_regs: disable profiling for some files Torsten Duwe
2016-02-10 16:34 ` [PATCH v8 6/8] Implement kernel live patching for ppc64le (ABIv2) Torsten Duwe
2016-02-11 9:01 ` Miroslav Benes
2016-02-10 16:36 ` [PATCH v8 7/8] Enable LIVEPATCH to be configured on ppc64le and add livepatch.o if it is selected Torsten Duwe
2016-02-11 6:18 ` [PATCH v8 0/8] ftrace with regs + live patching for ppc64 LE (ABI v2) Balbir Singh
2016-02-11 8:38 ` Torsten Duwe
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