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Date: Tue, 29 Nov 2016 15:00:43 -0800 From: Eric Dumazet <eric.dumazet@...il.com> To: Linus Torvalds <torvalds@...ux-foundation.org> Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Network Development <netdev@...r.kernel.org>, Meelis Roos <mroos@...ux.ee> Subject: Re: 4.9-rc7: (forcedeth?) BUG: sleeping function called from invalid context at kernel/irq/manage.c:110 On Tue, 2016-11-29 at 12:06 -0800, Linus Torvalds wrote: > On Nov 29, 2016 11:58 AM, "Eric Dumazet" <eric.dumazet@...il.com> > wrote: > > > > nv_do_nic_poll() is simply buggy and needs a fix. > > > > synchronize_irq() can sleep. > > Yes, but why did it start showing up now? None of this has changed as > far as I can see? > > Is it just timing and the transmit queue being busy? Perhaps due to > the sheer size of messages? Meelis does seem to have a ton of > debugging enabled.. > > Linus > > Looks like bad luck really or forced_irqthreads ? These commits contain what is wanted. 02cea3958664723a5d2236f0f0058de97c7e4693 genirq: Provide disable_hardirq() 18258f7239a61d8929b8e0c7b6d46c446459074c genirq: Provide synchronize_hardirq()
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