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Groups > linux.kernel > #1727492

Re: hung task in mac80211

From Stefano Brivio <sbrivio@redhat.com>
Newsgroups linux.kernel
Subject Re: hung task in mac80211
Date 2017-09-06 15:50 +0200
Message-ID <umISm-2uc-33@gated-at.bofh.it> (permalink)
References (2 earlier) <umHWi-1Qd-13@gated-at.bofh.it> <umIpk-2iw-13@gated-at.bofh.it> <umIz3-2mH-41@gated-at.bofh.it> <umIz3-2mH-39@gated-at.bofh.it> <umIIF-2qh-11@gated-at.bofh.it>
Organization Red Hat

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On Wed, 06 Sep 2017 15:30:10 +0200
Johannes Berg <johannes@sipsolutions.net> wrote:

> So for example replacing the loop of tid = 0..NUM_TIDS-1 with a
> list_for_each_entry() would already be unsafe with the dropping if the
> list were to require the mutex for locking.

Sure. Still, it would need another code change to break, but in general
I do agree indeed. :)


--
Stefano

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Thread

hung task in mac80211 Matteo Croce <mcroce@redhat.com> - 2017-09-06 14:00 +0200
  Re: hung task in mac80211 Christian Lamparter <chunkeey@googlemail.com> - 2017-09-06 14:30 +0200
  Re: hung task in mac80211 Stefano Brivio <sbrivio@redhat.com> - 2017-09-06 14:50 +0200
    Re: hung task in mac80211 Johannes Berg <johannes@sipsolutions.net> - 2017-09-06 14:50 +0200
      Re: hung task in mac80211 Johannes Berg <johannes@sipsolutions.net> - 2017-09-06 15:10 +0200
        Re: hung task in mac80211 Sebastian Gottschall <s.gottschall@dd-wrt.com> - 2017-09-06 15:30 +0200
      Re: hung task in mac80211 Stefano Brivio <sbrivio@redhat.com> - 2017-09-06 15:20 +0200
        Re: hung task in mac80211 Stefano Brivio <sbrivio@redhat.com> - 2017-09-06 15:30 +0200
          Re: hung task in mac80211 Johannes Berg <johannes@sipsolutions.net> - 2017-09-06 15:40 +0200
            Re: hung task in mac80211 Stefano Brivio <sbrivio@redhat.com> - 2017-09-06 15:50 +0200
        Re: hung task in mac80211 Johannes Berg <johannes@sipsolutions.net> - 2017-09-06 15:30 +0200
    Re: hung task in mac80211 Matteo Croce <mcroce@redhat.com> - 2017-09-06 15:10 +0200
  Re: hung task in mac80211 Johannes Berg <johannes@sipsolutions.net> - 2017-09-06 15:00 +0200
    Re: hung task in mac80211 Stefano Brivio <sbrivio@redhat.com> - 2017-09-06 16:30 +0200
      Re: hung task in mac80211 Johannes Berg <johannes@sipsolutions.net> - 2017-09-06 16:40 +0200
    Re: hung task in mac80211 Matteo Croce <mcroce@redhat.com> - 2017-09-06 17:10 +0200
      Re: hung task in mac80211 Johannes Berg <johannes@sipsolutions.net> - 2017-09-06 17:20 +0200
      Re: hung task in mac80211 Sebastian Gottschall <s.gottschall@dd-wrt.com> - 2017-09-06 17:50 +0200

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