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From: kernel test robot <lkp@intel.com>
To: kbuild-all@lists.01.org
Subject: Re: [RFC PATCH] spinlock_debug: Save stacktrace at lock acquisition
Date: Wed, 30 Jun 2021 13:05:59 +0800	[thread overview]
Message-ID: <202106301225.ddPa9Jbk-lkp@intel.com> (raw)
In-Reply-To: <1625016485-32581-1-git-send-email-gurus@codeaurora.org>

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Hi Guru,

[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on tip/locking/core]
[also build test WARNING on v5.13 next-20210629]
[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/Guru-Das-Srinagesh/spinlock_debug-Save-stacktrace-at-lock-acquisition/20210630-092833
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 0e8a89d49d45197770f2e57fb15f1bc9ded96eb0
config: powerpc-allyesconfig (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/0263428b26d26ba8f2edc28f65181c4ab3aefc8b
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Guru-Das-Srinagesh/spinlock_debug-Save-stacktrace-at-lock-acquisition/20210630-092833
        git checkout 0263428b26d26ba8f2edc28f65181c4ab3aefc8b
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc 

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

All warnings (new ones prefixed by >>):

   arch/powerpc/platforms/ps3/device-init.c: In function 'ps3_register_devices':
   arch/powerpc/platforms/ps3/device-init.c:948:6: warning: variable 'result' set but not used [-Wunused-but-set-variable]
     948 |  int result;
         |      ^~~~~~
   arch/powerpc/platforms/ps3/device-init.c: In function 'ps3_probe_thread':
>> arch/powerpc/platforms/ps3/device-init.c:872:1: warning: the frame size of 2800 bytes is larger than 2048 bytes [-Wframe-larger-than=]
     872 | }
         | ^


vim +872 arch/powerpc/platforms/ps3/device-init.c

b4cb2941f85599 Geert Uytterhoeven     2008-01-19  760  
ffbdd246478693 Geoff Levand           2007-06-16  761  /**
ffbdd246478693 Geoff Levand           2007-06-16  762   * ps3_probe_thread - Background repository probing at system startup.
ffbdd246478693 Geoff Levand           2007-06-16  763   *
ffbdd246478693 Geoff Levand           2007-06-16  764   * This implementation only supports background probing on a single bus.
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  765   * It uses the hypervisor's storage device notification mechanism to wait until
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  766   * a storage device is ready.  The device notification mechanism uses a
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  767   * pseudo device to asynchronously notify the guest when storage devices become
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  768   * ready.  The notification device has a block size of 512 bytes.
ffbdd246478693 Geoff Levand           2007-06-16  769   */
ffbdd246478693 Geoff Levand           2007-06-16  770  
ffbdd246478693 Geoff Levand           2007-06-16  771  static int ps3_probe_thread(void *data)
ffbdd246478693 Geoff Levand           2007-06-16  772  {
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  773  	struct ps3_notification_device dev;
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  774  	int res;
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  775  	unsigned int irq;
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  776  	u64 lpar;
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  777  	void *buf;
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  778  	struct ps3_notify_cmd *notify_cmd;
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  779  	struct ps3_notify_event *notify_event;
ffbdd246478693 Geoff Levand           2007-06-16  780  
ffbdd246478693 Geoff Levand           2007-06-16  781  	pr_debug(" -> %s:%u: kthread started\n", __func__, __LINE__);
ffbdd246478693 Geoff Levand           2007-06-16  782  
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  783  	buf = kzalloc(512, GFP_KERNEL);
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  784  	if (!buf)
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  785  		return -ENOMEM;
ffbdd246478693 Geoff Levand           2007-06-16  786  
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  787  	lpar = ps3_mm_phys_to_lpar(__pa(buf));
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  788  	notify_cmd = buf;
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  789  	notify_event = buf;
ffbdd246478693 Geoff Levand           2007-06-16  790  
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  791  	/* dummy system bus device */
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  792  	dev.sbd.bus_id = (u64)data;
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  793  	dev.sbd.dev_id = PS3_NOTIFICATION_DEV_ID;
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  794  	dev.sbd.interrupt_id = PS3_NOTIFICATION_INTERRUPT_ID;
ffbdd246478693 Geoff Levand           2007-06-16  795  
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  796  	res = lv1_open_device(dev.sbd.bus_id, dev.sbd.dev_id, 0);
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  797  	if (res) {
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  798  		pr_err("%s:%u: lv1_open_device failed %s\n", __func__,
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  799  		       __LINE__, ps3_result(res));
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  800  		goto fail_free;
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  801  	}
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  802  
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  803  	res = ps3_sb_event_receive_port_setup(&dev.sbd, PS3_BINDING_CPU_ANY,
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  804  					      &irq);
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  805  	if (res) {
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  806  		pr_err("%s:%u: ps3_sb_event_receive_port_setup failed %d\n",
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  807  		       __func__, __LINE__, res);
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  808  	       goto fail_close_device;
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  809  	}
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  810  
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  811  	spin_lock_init(&dev.lock);
e21fee5368f46e Peter Zijlstra (Intel  2020-03-21  812) 	rcuwait_init(&dev.wait);
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  813  
a3a9f3b47d12b5 Yong Zhang             2011-10-21  814  	res = request_irq(irq, ps3_notification_interrupt, 0,
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  815  			  "ps3_notification", &dev);
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  816  	if (res) {
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  817  		pr_err("%s:%u: request_irq failed %d\n", __func__, __LINE__,
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  818  		       res);
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  819  		goto fail_sb_event_receive_port_destroy;
ffbdd246478693 Geoff Levand           2007-06-16  820  	}
ffbdd246478693 Geoff Levand           2007-06-16  821  
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  822  	/* Setup and write the request for device notification. */
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  823  	notify_cmd->operation_code = 0; /* must be zero */
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  824  	notify_cmd->event_mask = 1UL << notify_region_probe;
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  825  
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  826  	res = ps3_notification_read_write(&dev, lpar, 1);
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  827  	if (res)
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  828  		goto fail_free_irq;
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  829  
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  830  	/* Loop here processing the requested notification events. */
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  831  	do {
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  832  		try_to_freeze();
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  833  
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  834  		memset(notify_event, 0, sizeof(*notify_event));
ffbdd246478693 Geoff Levand           2007-06-16  835  
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  836  		res = ps3_notification_read_write(&dev, lpar, 0);
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  837  		if (res)
ffbdd246478693 Geoff Levand           2007-06-16  838  			break;
ffbdd246478693 Geoff Levand           2007-06-16  839  
5c949070c7a591 Stephen Rothwell       2009-01-13  840  		pr_debug("%s:%u: notify event type 0x%llx bus id %llu dev id %llu"
5c949070c7a591 Stephen Rothwell       2009-01-13  841  			 " type %llu port %llu\n", __func__, __LINE__,
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  842  			 notify_event->event_type, notify_event->bus_id,
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  843  			 notify_event->dev_id, notify_event->dev_type,
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  844  			 notify_event->dev_port);
ffbdd246478693 Geoff Levand           2007-06-16  845  
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  846  		if (notify_event->event_type != notify_region_probe ||
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  847  		    notify_event->bus_id != dev.sbd.bus_id) {
f2c2cbcc35d47f Joe Perches            2016-10-24  848  			pr_warn("%s:%u: bad notify_event: event %llu, dev_id %llu, dev_type %llu\n",
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  849  				__func__, __LINE__, notify_event->event_type,
f2c2cbcc35d47f Joe Perches            2016-10-24  850  				notify_event->dev_id, notify_event->dev_type);
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  851  			continue;
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  852  		}
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  853  
972b1f040c8698 Geert Uytterhoeven     2008-01-19  854  		ps3_find_and_add_device(dev.sbd.bus_id, notify_event->dev_id);
ffbdd246478693 Geoff Levand           2007-06-16  855  
ffbdd246478693 Geoff Levand           2007-06-16  856  	} while (!kthread_should_stop());
ffbdd246478693 Geoff Levand           2007-06-16  857  
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  858  fail_free_irq:
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  859  	free_irq(irq, &dev);
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  860  fail_sb_event_receive_port_destroy:
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  861  	ps3_sb_event_receive_port_destroy(&dev.sbd, irq);
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  862  fail_close_device:
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  863  	lv1_close_device(dev.sbd.bus_id, dev.sbd.dev_id);
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  864  fail_free:
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  865  	kfree(buf);
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  866  
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  867  	probe_task = NULL;
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  868  
ffbdd246478693 Geoff Levand           2007-06-16  869  	pr_debug(" <- %s:%u: kthread finished\n", __func__, __LINE__);
ffbdd246478693 Geoff Levand           2007-06-16  870  
ffbdd246478693 Geoff Levand           2007-06-16  871  	return 0;
ffbdd246478693 Geoff Levand           2007-06-16 @872  }
ffbdd246478693 Geoff Levand           2007-06-16  873  
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  874  /**
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  875   * ps3_stop_probe_thread - Stops the background probe thread.
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  876   *
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  877   */
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  878  
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  879  static int ps3_stop_probe_thread(struct notifier_block *nb, unsigned long code,
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  880  				 void *data)
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  881  {
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  882  	if (probe_task)
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  883  		kthread_stop(probe_task);
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  884  	return 0;
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  885  }
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  886  
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  887  static struct notifier_block nb = {
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  888  	.notifier_call = ps3_stop_probe_thread
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  889  };
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  890  
ffbdd246478693 Geoff Levand           2007-06-16  891  /**
ffbdd246478693 Geoff Levand           2007-06-16  892   * ps3_start_probe_thread - Starts the background probe thread.
ffbdd246478693 Geoff Levand           2007-06-16  893   *
ffbdd246478693 Geoff Levand           2007-06-16  894   */
ffbdd246478693 Geoff Levand           2007-06-16  895  
ffbdd246478693 Geoff Levand           2007-06-16  896  static int __init ps3_start_probe_thread(enum ps3_bus_type bus_type)
ffbdd246478693 Geoff Levand           2007-06-16  897  {
ffbdd246478693 Geoff Levand           2007-06-16  898  	int result;
ffbdd246478693 Geoff Levand           2007-06-16  899  	struct task_struct *task;
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  900  	struct ps3_repository_device repo;
ffbdd246478693 Geoff Levand           2007-06-16  901  
ffbdd246478693 Geoff Levand           2007-06-16  902  	pr_debug(" -> %s:%d\n", __func__, __LINE__);
ffbdd246478693 Geoff Levand           2007-06-16  903  
ffbdd246478693 Geoff Levand           2007-06-16  904  	memset(&repo, 0, sizeof(repo));
ffbdd246478693 Geoff Levand           2007-06-16  905  
ffbdd246478693 Geoff Levand           2007-06-16  906  	repo.bus_type = bus_type;
ffbdd246478693 Geoff Levand           2007-06-16  907  
ffbdd246478693 Geoff Levand           2007-06-16  908  	result = ps3_repository_find_bus(repo.bus_type, 0, &repo.bus_index);
ffbdd246478693 Geoff Levand           2007-06-16  909  
ffbdd246478693 Geoff Levand           2007-06-16  910  	if (result) {
ffbdd246478693 Geoff Levand           2007-06-16  911  		printk(KERN_ERR "%s: Cannot find bus (%d)\n", __func__, result);
ffbdd246478693 Geoff Levand           2007-06-16  912  		return -ENODEV;
ffbdd246478693 Geoff Levand           2007-06-16  913  	}
ffbdd246478693 Geoff Levand           2007-06-16  914  
ffbdd246478693 Geoff Levand           2007-06-16  915  	result = ps3_repository_read_bus_id(repo.bus_index, &repo.bus_id);
ffbdd246478693 Geoff Levand           2007-06-16  916  
ffbdd246478693 Geoff Levand           2007-06-16  917  	if (result) {
ffbdd246478693 Geoff Levand           2007-06-16  918  		printk(KERN_ERR "%s: read_bus_id failed %d\n", __func__,
ffbdd246478693 Geoff Levand           2007-06-16  919  			result);
ffbdd246478693 Geoff Levand           2007-06-16  920  		return -ENODEV;
ffbdd246478693 Geoff Levand           2007-06-16  921  	}
ffbdd246478693 Geoff Levand           2007-06-16  922  
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  923  	task = kthread_run(ps3_probe_thread, (void *)repo.bus_id,
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  924  			   "ps3-probe-%u", bus_type);
ffbdd246478693 Geoff Levand           2007-06-16  925  
ffbdd246478693 Geoff Levand           2007-06-16  926  	if (IS_ERR(task)) {
ffbdd246478693 Geoff Levand           2007-06-16  927  		result = PTR_ERR(task);
ffbdd246478693 Geoff Levand           2007-06-16  928  		printk(KERN_ERR "%s: kthread_run failed %d\n", __func__,
ffbdd246478693 Geoff Levand           2007-06-16  929  		       result);
ffbdd246478693 Geoff Levand           2007-06-16  930  		return result;
ffbdd246478693 Geoff Levand           2007-06-16  931  	}
ffbdd246478693 Geoff Levand           2007-06-16  932  
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  933  	probe_task = task;
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  934  	register_reboot_notifier(&nb);
b4cb2941f85599 Geert Uytterhoeven     2008-01-19  935  
ffbdd246478693 Geoff Levand           2007-06-16  936  	pr_debug(" <- %s:%d\n", __func__, __LINE__);
ffbdd246478693 Geoff Levand           2007-06-16  937  	return 0;
ffbdd246478693 Geoff Levand           2007-06-16  938  }
ffbdd246478693 Geoff Levand           2007-06-16  939  
ffbdd246478693 Geoff Levand           2007-06-16  940  /**
ffbdd246478693 Geoff Levand           2007-06-16  941   * ps3_register_devices - Probe the system and register devices found.
ffbdd246478693 Geoff Levand           2007-06-16  942   *
ffbdd246478693 Geoff Levand           2007-06-16  943   * A device_initcall() routine.
ffbdd246478693 Geoff Levand           2007-06-16  944   */
ffbdd246478693 Geoff Levand           2007-06-16  945  
ffbdd246478693 Geoff Levand           2007-06-16  946  static int __init ps3_register_devices(void)
ffbdd246478693 Geoff Levand           2007-06-16  947  {
ffbdd246478693 Geoff Levand           2007-06-16 @948  	int result;
ffbdd246478693 Geoff Levand           2007-06-16  949  
ffbdd246478693 Geoff Levand           2007-06-16  950  	if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
ffbdd246478693 Geoff Levand           2007-06-16  951  		return -ENODEV;
ffbdd246478693 Geoff Levand           2007-06-16  952  
ffbdd246478693 Geoff Levand           2007-06-16  953  	pr_debug(" -> %s:%d\n", __func__, __LINE__);
ffbdd246478693 Geoff Levand           2007-06-16  954  
ffbdd246478693 Geoff Levand           2007-06-16  955  	/* ps3_repository_dump_bus_info(); */
ffbdd246478693 Geoff Levand           2007-06-16  956  
ffbdd246478693 Geoff Levand           2007-06-16  957  	result = ps3_start_probe_thread(PS3_BUS_TYPE_STORAGE);
ffbdd246478693 Geoff Levand           2007-06-16  958  
ffbdd246478693 Geoff Levand           2007-06-16  959  	ps3_register_vuart_devices();
ffbdd246478693 Geoff Levand           2007-06-16  960  
ffbdd246478693 Geoff Levand           2007-06-16  961  	ps3_register_graphics_devices();
ffbdd246478693 Geoff Levand           2007-06-16  962  
b163a256dac8ce Geert Uytterhoeven     2008-03-29  963  	ps3_repository_find_devices(PS3_BUS_TYPE_SB, ps3_setup_static_device);
ffbdd246478693 Geoff Levand           2007-06-16  964  
ffbdd246478693 Geoff Levand           2007-06-16  965  	ps3_register_sound_devices();
ffbdd246478693 Geoff Levand           2007-06-16  966  
ed7570022a42a6 Geoff Levand           2008-01-19  967  	ps3_register_lpm_devices();
ed7570022a42a6 Geoff Levand           2008-01-19  968  
cffb4add03b1fc Jim Paris              2009-01-06  969  	ps3_register_ramdisk_device();
cffb4add03b1fc Jim Paris              2009-01-06  970  
ffbdd246478693 Geoff Levand           2007-06-16  971  	pr_debug(" <- %s:%d\n", __func__, __LINE__);
ffbdd246478693 Geoff Levand           2007-06-16  972  	return 0;
ffbdd246478693 Geoff Levand           2007-06-16  973  }
ffbdd246478693 Geoff Levand           2007-06-16  974  

---
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:[~2021-06-30  5:05 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-30  1:28 [RFC PATCH] spinlock_debug: Save stacktrace at lock acquisition Guru Das Srinagesh
2021-06-30  2:01 ` Waiman Long
2021-06-30  5:05 ` kernel test robot [this message]
2021-07-07  9:22 ` [spinlock_debug] 0263428b26: kernel-selftests.dma.dma_map_benchmark.average_unmap_latency 87.5% regression kernel test robot
2021-07-07  9:22   ` kernel test robot

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