From: kbuild test robot <lkp@intel.com>
To: Douglas Anderson <dianders@chromium.org>
Cc: kbuild-all@01.org, Jason Wessel <jason.wessel@windriver.com>,
Daniel Thompson <daniel.thompson@linaro.org>,
Will Deacon <will.deacon@arm.com>,
kgdb-bugreport@lists.sourceforge.net,
Peter Zijlstra <peterz@infradead.org>,
Douglas Anderson <dianders@chromium.org>,
linux-mips@linux-mips.org, linux-sh@vger.kernel.org,
linux-kernel@vger.kernel.org,
Catalin Marinas <catalin.marinas@arm.com>,
James Hogan <jhogan@kernel.org>,
linux-hexagon@vger.kernel.org, Vineet Gupta <vgupta@synopsys.com>,
Rich Felker <dalias@libc.org>, Ralf Baechle <ralf@linux-mips.org>,
linux-snps-arc@lists.infradead.org,
Yoshinori Sato <ysato@users.sourceforge.jp>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Russell King <linux@armlinux.org.uk>,
linux-arm-kernel@lists.infradead.org,
Christophe Leroy <christophe.leroy@c-s.fr>,
Michael Ellerman <mpe@ellerman.id.au>,
Paul Burton <paul.burton@mips.com>,
Richard Kuo <rkuo@codeaurora.org>,
linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v5 2/4] kgdb: Fix kgdb_roundup_cpus() for arches who used smp_call_function()
Date: Tue, 27 Nov 2018 13:38:41 +0800 [thread overview]
Message-ID: <201811271333.8ZTVxYUT%fengguang.wu@intel.com> (raw)
In-Reply-To: <20181127035133.225592-3-dianders@chromium.org>
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Hi Douglas,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on kgdb/kgdb-next]
[also build test ERROR on v4.20-rc4 next-20181126]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Douglas-Anderson/kgdb-Fix-kgdb_roundup_cpus/20181127-115425
base: https://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb.git kgdb-next
config: sparc64-allyesconfig (attached as .config)
compiler: sparc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=7.2.0 make.cross ARCH=sparc64
Note: the linux-review/Douglas-Anderson/kgdb-Fix-kgdb_roundup_cpus/20181127-115425 HEAD b8d0502e65f2d7a2187baa69870146a6fbf18c9f builds fine.
It only hurts bisectibility.
All errors (new ones prefixed by >>):
kernel/debug/debug_core.c: In function 'kgdb_roundup_cpus':
>> kernel/debug/debug_core.c:261:18: error: 'struct debuggerinfo_struct' has no member named 'rounding_up'
kgdb_info[cpu].rounding_up = false;
^
vim +261 kernel/debug/debug_core.c
244
245 void __weak kgdb_roundup_cpus(void)
246 {
247 call_single_data_t *csd;
248 int this_cpu = raw_smp_processor_id();
249 int cpu;
250 int ret;
251
252 for_each_online_cpu(cpu) {
253 /* No need to roundup ourselves */
254 if (cpu == this_cpu)
255 continue;
256
257 csd = &per_cpu(kgdb_roundup_csd, cpu);
258 csd->func = kgdb_call_nmi_hook;
259 ret = smp_call_function_single_async(cpu, csd);
260 if (ret)
> 261 kgdb_info[cpu].rounding_up = false;
262 }
263 }
264
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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next prev parent reply other threads:[~2018-11-27 5:39 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-27 3:51 [PATCH v5 0/4] kgdb: Fix kgdb_roundup_cpus() Douglas Anderson
2018-11-27 3:51 ` [PATCH v5 1/4] kgdb: Remove irq flags from roundup Douglas Anderson
2018-11-27 3:51 ` [PATCH v5 2/4] kgdb: Fix kgdb_roundup_cpus() for arches who used smp_call_function() Douglas Anderson
2018-11-27 5:38 ` kbuild test robot [this message]
2018-11-27 17:39 ` Doug Anderson
2018-11-27 19:30 ` Will Deacon
2018-11-27 3:51 ` [PATCH v5 3/4] kgdb: Don't round up a CPU that failed rounding up before Douglas Anderson
2018-11-27 3:51 ` [PATCH v5 4/4] kdb: Don't back trace on a cpu that didn't round up Douglas Anderson
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