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From: Harald Arnesen <harald@skogtun.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org, Johannes Berg <johannes.berg@intel.com>,
	Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH 5.12 4/5] cfg80211: fix locking in netlink owner interface destruction
Date: Fri, 30 Apr 2021 17:04:22 +0200
Message-ID: <1669b7da-173b-c5d5-efd3-72ca64a3e221@skogtun.org> (raw)
In-Reply-To: <20210430141911.033571444@linuxfoundation.org>

Greg Kroah-Hartman [30.04.2021 16:20]:

> From: Johannes Berg <johannes.berg@intel.com>
> 
> commit ea6b2098dd02789f68770fd3d5a373732207be2f upstream.
> 
> Harald Arnesen reported [1] a deadlock at reboot time, and after
> he captured a stack trace a picture developed of what's going on:
> 
> The distribution he's using is using iwd (not wpa_supplicant) to
> manage wireless. iwd will usually use the "socket owner" option
> when it creates new interfaces, so that they're automatically
> destroyed when it quits (unexpectedly or otherwise). This is also
> done by wpa_supplicant, but it doesn't do it for the normal one,
> only for additional ones, which is different with iwd.

I just want to point out that the distribution (Void Linux) can use
either wpa_supplicant or iwd. I just happened to use iwd on this machine.
-- 
Hilsen Harald

  reply index

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-30 14:20 [PATCH 5.12 0/5] 5.12.1-rc1 review Greg Kroah-Hartman
2021-04-30 14:20 ` [PATCH 5.12 1/5] net: hso: fix NULL-deref on disconnect regression Greg Kroah-Hartman
2021-04-30 14:20 ` [PATCH 5.12 2/5] USB: CDC-ACM: fix poison/unpoison imbalance Greg Kroah-Hartman
2021-04-30 14:20 ` [PATCH 5.12 3/5] iwlwifi: Fix softirq/hardirq disabling in iwl_pcie_gen2_enqueue_hcmd() Greg Kroah-Hartman
2021-04-30 14:20 ` [PATCH 5.12 4/5] cfg80211: fix locking in netlink owner interface destruction Greg Kroah-Hartman
2021-04-30 15:04   ` Harald Arnesen [this message]
2021-04-30 14:21 ` [PATCH 5.12 5/5] mei: me: add Alder Lake P device id Greg Kroah-Hartman
2021-04-30 22:34 ` [PATCH 5.12 0/5] 5.12.1-rc1 review Fox Chen
2021-05-01  6:41 ` Naresh Kamboju
2021-05-01 12:28 ` Jon Hunter
2021-05-01 13:14 ` Guenter Roeck

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