linux-kernel - Re: [patch 08/12] x86/entry: Use run_sysvec_on_irqstack

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Date:   Fri, 5 Feb 2021 15:28:50 +0800
From:   kernel test robot <lkp@...el.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>
Cc:     kbuild-all@...ts.01.org, x86@...nel.org,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Kees Cook <keescook@...omium.org>
Subject: Re: [patch 08/12] x86/entry: Use run_sysvec_on_irqstack_cond() for
 XEN upcall

Hi Thomas,

I love your patch! Perhaps something to improve:

[auto build test WARNING on tip/x86/asm]
[also build test WARNING on tip/master linus/master tip/x86/core v5.11-rc6 next-20210125]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Thomas-Gleixner/x86-irq-64-Inline-irq-stack-switching/20210205-091059
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 5c99720b28381bb400d4f546734c34ddaf608761
config: x86_64-rhel (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/ab3144e8d40d2a97101655f99804baa009bcdc36
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Thomas-Gleixner/x86-irq-64-Inline-irq-stack-switching/20210205-091059
        git checkout ab3144e8d40d2a97101655f99804baa009bcdc36
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> arch/x86/entry/common.o: warning: objtool: xen_pv_evtchn_do_upcall()+0xa3: undefined stack state

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

Download attachment ".config.gz" of type "application/gzip" (45960 bytes)