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From: Maxim Levitsky <mlevitsk@redhat.com>
To: kvm@vger.kernel.org
Cc: Michael Jamet <michael.jamet@intel.com>,
	Mika Westerberg <mika.westerberg@linux.intel.com>,
	Andreas Noever <andreas.noever@gmail.com>,
	linux-usb@vger.kernel.org (open list:THUNDERBOLT DRIVER),
	Yehezkel Bernat <YehezkelShB@gmail.com>,
	linux-kernel@vger.kernel.org (open list),
	Jiri Kosina <trivial@kernel.org>,
	Maxim Levitsky <mlevitsk@redhat.com>
Subject: [PATCH 0/1] RFC: Make thunderbolt NHI driver work with kexec
Date: Wed, 20 May 2020 21:12:39 +0300	[thread overview]
Message-ID: <20200520181240.118559-1-mlevitsk@redhat.com> (raw)

While trying to use kexec on my desktop,
which has Titan Ridge Thunderbolt add-on card,
I noticed that after a kexec, system hangs
for about a minute in the 'wating for udev devices
to settle' phase of the boot.

I found out that if I unload the thunderbolt driver
prior to the kexec, then it works just fine.

Looking at the code I see that the driver doeesn't
implement .shutdown method, so this on-liner patch
points it to the same method that is used on device removal.

I don't know if this is the right solution,
but it does appear to work just fine with this patch.

What do you think?

Best regards,
	Maxim Levitsky

Maxim Levitsky (1):
  thunderbolt: add trivial .shutdown

 drivers/thunderbolt/nhi.c | 1 +
 1 file changed, 1 insertion(+)

-- 
2.25.4



             reply	other threads:[~2020-05-20 18:12 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-20 18:12 Maxim Levitsky [this message]
2020-05-20 18:12 ` [PATCH 1/1] thunderbolt: add trivial .shutdown Maxim Levitsky
2020-05-20 18:45   ` Maxim Levitsky

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