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From: Guenter Roeck <linux@roeck-us.net>
To: Isaac Manjarres <isaacmanjarres@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	Tomeu Vizoso <tomeu.vizoso@collabora.com>,
	Russell King <rmk+kernel@arm.linux.org.uk>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	Saravana Kannan <saravanak@google.com>,
	stable@kernel.org, kernel-team@android.com,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] driver core: Fix bus_type.match() error handling
Date: Fri, 19 Aug 2022 04:28:32 -0700	[thread overview]
Message-ID: <20220819112832.GA3106213@roeck-us.net> (raw)
In-Reply-To: <Yv7bd6Yl8+thp2CY@google.com>

On Thu, Aug 18, 2022 at 05:38:15PM -0700, Isaac Manjarres wrote:
> On Thu, Aug 18, 2022 at 03:59:32PM -0700, Guenter Roeck wrote:
> > Requesting system reboot
> > sd 0:0:0:0: [sda] Synchronizing SCSI cache
> > ci_hdrc ci_hdrc.1: remove, state 4
> > usb usb2: USB disconnect, device number 1
> > ci_hdrc ci_hdrc.1: USB bus 2 deregistered
> > ci_hdrc ci_hdrc.0: remove, state 1
> > usb usb1: USB disconnect, device number 1
> > usb 1-1: USB disconnect, device number 2
> > sd 0:0:0:0: [sda] Synchronizing SCSI cache
> > sd 0:0:0:0: [sda] Synchronize Cache(10) failed: Result: hostbyte=0x01 driverbyte=DRIVER_OK
> > 
> > [ stuck here until qemu is killed ]
> > 
> Hi Guenter,
> 
> I'm actually observing the behavior described above even without my patch.
> The tip of my tree is currently at 573ae4f13f63 ("tee: add overflow check in
> register_shm_helper()"). I used git bisect to find what commit was
> causing the problem, and narrowed it down to this series[1].
> 
> I reverted all 4 patches in that series, and I no longer see this hang
> with my tree.
> 
> [1]: https://lore.kernel.org/all/20220712221936.1199196-1-bvanassche@acm.org/
> 
> Are these patches part of the tree you're using for testing and
> observing this hang in?
> 

Yes, you are correct. I also see the problem in the mainline kernel,
at SHA 3b06a2755758, and with a large number of boots from usb drive
in various arm emulations. Sorry for the confusion. Too many crashes :-(.

Guenter

  reply	other threads:[~2022-08-19 11:28 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20220815211927eucas1p275ed3f63f1baf76b319a828c214c651f@eucas1p2.samsung.com>
2022-08-15 21:19 ` [PATCH v2] driver core: Fix bus_type.match() error handling Isaac J. Manjarres
2022-08-16  4:25   ` Guenter Roeck
2022-08-16  5:17     ` Isaac Manjarres
2022-08-16 11:13       ` Guenter Roeck
2022-08-16 17:13         ` Isaac Manjarres
2022-08-17  1:05           ` Guenter Roeck
2022-08-17  1:12             ` Isaac Manjarres
2022-08-18 22:59               ` Guenter Roeck
2022-08-19  0:38                 ` Isaac Manjarres
2022-08-19 11:28                   ` Guenter Roeck [this message]
2022-08-19 17:45                     ` Isaac Manjarres
2022-08-19 20:01                       ` Bart Van Assche
2022-08-19 20:55                         ` Guenter Roeck
2022-08-19 22:08                         ` Guenter Roeck
2022-08-20  0:07                           ` Bart Van Assche
2022-08-20 11:48                             ` Guenter Roeck
2022-08-21 21:39                               ` Bart Van Assche
2022-08-25  9:22   ` Marek Szyprowski

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