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From: kbuild test robot <lkp@intel.com>
To: Anchal Agarwal <anchalag@amazon.com>,
	tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
	hpa@zytor.com, x86@kernel.org, boris.ostrovsky@oracle.com,
	jgross@suse.com, linux-pm@vger.kernel.org, linux-mm@kvack.org,
	kamatam@amazon.com, sstabellini@kernel.org,
	konrad.wilk@oracle.com, roger.pau@citrix.com, axboe@kernel.dk,
	davem@davemloft.net, rjw@rjwysocki.net, len.brown@intel.com,
	pavel@ucw.cz, peterz@infradead.org, eduval@amazon.com,
	sblbir@amazon.com, xen-devel@lists.xenproject.org,
	vkuznets@redhat.com, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org, dwmw@amazon.co.uk,
	benh@kernel.crashing.org
Cc: kbuild-all@lists.01.org
Subject: Re: [PATCH 06/12] xen-blkfront: add callbacks for PM suspend and hibernation
Date: Wed, 20 May 2020 13:07:58 +0800	[thread overview]
Message-ID: <202005201349.83AY8NAQ%lkp@intel.com> (raw)
In-Reply-To: <ad580b4d5b76c18fe2fe409704f25622e01af361.1589926004.git.anchalag@amazon.com>

[-- Attachment #1: Type: text/plain, Size: 4085 bytes --]

Hi Anchal,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.7-rc6]
[cannot apply to xen-tip/linux-next tip/irq/core tip/auto-latest next-20200519]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Anchal-Agarwal/Fix-PM-hibernation-in-Xen-guests/20200520-073211
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 03fb3acae4be8a6b680ffedb220a8b6c07260b40
config: x86_64-rhel (attached as .config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

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

All error/warnings (new ones prefixed by >>, old ones prefixed by <<):

drivers/block/xen-blkfront.c: In function 'blkfront_freeze':
>> drivers/block/xen-blkfront.c:2699:30: warning: missing terminating " character
xenbus_dev_error(dev, err, "Hibernation Failed.
^
>> drivers/block/xen-blkfront.c:2699:30: error: missing terminating " character
xenbus_dev_error(dev, err, "Hibernation Failed.
^~~~~~~~~~~~~~~~~~~~
>> drivers/block/xen-blkfront.c:2700:4: error: 'The' undeclared (first use in this function)
The ring is still busy");
^~~
drivers/block/xen-blkfront.c:2700:4: note: each undeclared identifier is reported only once for each function it appears in
>> drivers/block/xen-blkfront.c:2700:8: error: expected ')' before 'ring'
The ring is still busy");
^~~~
drivers/block/xen-blkfront.c:2700:26: warning: missing terminating " character
The ring is still busy");
^
drivers/block/xen-blkfront.c:2700:26: error: missing terminating " character
The ring is still busy");
^~~
>> drivers/block/xen-blkfront.c:2704:2: error: expected ';' before '}' token
}
^

vim +2699 drivers/block/xen-blkfront.c

  2672	
  2673	static int blkfront_freeze(struct xenbus_device *dev)
  2674	{
  2675		unsigned int i;
  2676		struct blkfront_info *info = dev_get_drvdata(&dev->dev);
  2677		struct blkfront_ring_info *rinfo;
  2678		/* This would be reasonable timeout as used in xenbus_dev_shutdown() */
  2679		unsigned int timeout = 5 * HZ;
  2680		unsigned long flags;
  2681		int err = 0;
  2682	
  2683		info->connected = BLKIF_STATE_FREEZING;
  2684	
  2685		blk_mq_freeze_queue(info->rq);
  2686		blk_mq_quiesce_queue(info->rq);
  2687	
  2688		for_each_rinfo(info, rinfo, i) {
  2689		    /* No more gnttab callback work. */
  2690		    gnttab_cancel_free_callback(&rinfo->callback);
  2691		    /* Flush gnttab callback work. Must be done with no locks held. */
  2692		    flush_work(&rinfo->work);
  2693		}
  2694	
  2695		for_each_rinfo(info, rinfo, i) {
  2696		    spin_lock_irqsave(&rinfo->ring_lock, flags);
  2697		    if (RING_FULL(&rinfo->ring)
  2698			    || RING_HAS_UNCONSUMED_RESPONSES(&rinfo->ring)) {
> 2699			xenbus_dev_error(dev, err, "Hibernation Failed.
> 2700				The ring is still busy");
  2701			info->connected = BLKIF_STATE_CONNECTED;
  2702			spin_unlock_irqrestore(&rinfo->ring_lock, flags);
  2703			return -EBUSY;
> 2704		}
  2705		    spin_unlock_irqrestore(&rinfo->ring_lock, flags);
  2706		}
  2707		/* Kick the backend to disconnect */
  2708		xenbus_switch_state(dev, XenbusStateClosing);
  2709	
  2710		/*
  2711		 * We don't want to move forward before the frontend is diconnected
  2712		 * from the backend cleanly.
  2713		 */
  2714		timeout = wait_for_completion_timeout(&info->wait_backend_disconnected,
  2715						      timeout);
  2716		if (!timeout) {
  2717			err = -EBUSY;
  2718			xenbus_dev_error(dev, err, "Freezing timed out;"
  2719					 "the device may become inconsistent state");
  2720		}
  2721	
  2722		return err;
  2723	}
  2724	

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

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  parent reply	other threads:[~2020-05-20  5:08 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-19 23:24 [PATCH 00/12] Fix PM hibernation in Xen guests Anchal Agarwal
2020-05-19 23:24 ` [PATCH 01/12] xen/manage: keep track of the on-going suspend mode Anchal Agarwal
2020-05-30 22:26   ` Boris Ostrovsky
2020-06-01 21:00     ` Agarwal, Anchal
2020-06-01 22:39       ` Boris Ostrovsky
2020-05-19 23:25 ` [PATCH 02/12] xenbus: add freeze/thaw/restore callbacks support Anchal Agarwal
2020-05-30 22:56   ` Boris Ostrovsky
2020-06-01 23:36     ` Agarwal, Anchal
2020-05-19 23:25 ` [PATCH 03/12] x86/xen: Introduce new function to map HYPERVISOR_shared_info on Resume Anchal Agarwal
2020-05-30 23:02   ` Boris Ostrovsky
2020-06-04 23:03     ` Anchal Agarwal
2020-06-05 21:39       ` Boris Ostrovsky
2020-06-08 16:52         ` Anchal Agarwal
2020-06-08 18:49           ` Boris Ostrovsky
2020-05-19 23:26 ` [PATCH 04/12] x86/xen: add system core suspend and resume callbacks Anchal Agarwal
2020-05-30 23:10   ` Boris Ostrovsky
2020-06-03 22:40     ` Agarwal, Anchal
2020-06-05 21:24       ` Boris Ostrovsky
2020-06-08 17:09         ` Anchal Agarwal
2020-05-19 23:26 ` [PATCH 05/12] genirq: Shutdown irq chips in suspend/resume during hibernation Anchal Agarwal
2020-05-19 23:29   ` Singh, Balbir
2020-05-19 23:36     ` Agarwal, Anchal
2020-05-19 23:34   ` Anchal Agarwal
2020-05-30 23:17   ` Boris Ostrovsky
2020-06-01 20:46     ` Agarwal, Anchal
2020-05-19 23:27 ` [PATCH 06/12] xen-blkfront: add callbacks for PM suspend and hibernation Anchal Agarwal
2020-05-20  5:00   ` kbuild test robot
2020-05-20  5:07   ` kbuild test robot [this message]
2020-05-21 23:48   ` Anchal Agarwal
2020-05-22  1:43     ` Singh, Balbir
2020-05-23 12:32   ` kbuild test robot
2020-05-28 12:30   ` Roger Pau Monné
2020-05-19 23:28 ` [PATCH 07/12] xen-netfront: " Anchal Agarwal
2020-05-19 23:28 ` [PATCH 08/12] xen/time: introduce xen_{save,restore}_steal_clock Anchal Agarwal
2020-05-30 23:32   ` Boris Ostrovsky
2020-05-19 23:28 ` [PATCH 09/12] x86/xen: save and restore steal clock Anchal Agarwal
2020-05-30 23:44   ` Boris Ostrovsky
2020-06-04 18:33     ` Anchal Agarwal
2020-05-19 23:29 ` [PATCH 10/12] xen: Introduce wrapper for save/restore sched clock offset Anchal Agarwal
2020-05-19 23:29 ` [PATCH 11/12] xen: Update sched clock offset to avoid system instability in hibernation Anchal Agarwal
2020-05-19 23:29 ` [PATCH 12/12] PM / hibernate: update the resume offset on SNAPSHOT_SET_SWAP_AREA Anchal Agarwal
2020-05-28 17:59 ` [PATCH 00/12] Fix PM hibernation in Xen guests Agarwal, Anchal

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