Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1685120

Re: [GIT pull] irq updates for 4.13

From Thomas Gleixner <tglx@linutronix.de>
Newsgroups linux.kernel
Subject Re: [GIT pull] irq updates for 4.13
Date 2017-07-11 17:10 +0200
Message-ID <u24Xx-3TD-39@gated-at.bofh.it> (permalink)
References (2 earlier) <u1Km8-7MA-37@gated-at.bofh.it> <u1Xjl-7kC-21@gated-at.bofh.it> <u1ZXQ-zq-7@gated-at.bofh.it> <u23RP-31D-137@gated-at.bofh.it> <u24Ea-3xP-15@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw

On Tue, 11 Jul 2017, Thomas Gleixner wrote:
> On Tue, 11 Jul 2017, Tony Lindgren wrote:
> > * Thomas Gleixner <tglx@linutronix.de> [170711 02:48]:
> > And "external abort on non-linefetch" means something is not clocked
> > in this case. The following alone makes things boot for me again, but I don't
> > quite follow what has now changed with the ordering.. Thomas, any ideas?
> 
> Ah. Now that makes sense.
> 
> Unpatched the ordering is:
> 
> 	  chip_bus_lock(desc);
> 	  irq_request_resources(desc);
> 
> Now the offending change reordered the calls. OMAP gpio has:
> 
>     omap_gpio_irq_bus_lock()
>        pm_runtime_get_sync(bank->chip.parent);
> 
> So that at least explains the error. So that omap gpio irq chip (ab)uses
> the bus_lock() callback to do runtime power management. Sigh, I did not
> expect that. Let me have a deeper look if that's OMAP only or whether this
> happens in other places as well.

So OMAP-GPIO is the only driver which abuses bus_lock/unlock() in that way
and gets surprised.

Thanks,

	tglx

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[GIT pull] irq updates for 4.13 Thomas Gleixner <tglx@linutronix.de> - 2017-07-09 11:00 +0200
  Re: [GIT pull] irq updates for 4.13 Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-07-10 15:40 +0200
    Re: [GIT pull] irq updates for 4.13 Linus Torvalds <torvalds@linux-foundation.org> - 2017-07-10 19:10 +0200
      Re: [GIT pull] irq updates for 4.13 Pavel Machek <pavel@ucw.cz> - 2017-07-10 21:40 +0200
      Re: [GIT pull] irq updates for 4.13 Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-07-10 22:20 +0200
        Re: [GIT pull] irq updates for 4.13 Linus Torvalds <torvalds@linux-foundation.org> - 2017-07-10 23:30 +0200
      Re: [GIT pull] irq updates for 4.13 Thomas Gleixner <tglx@linutronix.de> - 2017-07-11 09:00 +0200
        Re: [GIT pull] irq updates for 4.13 Thomas Gleixner <tglx@linutronix.de> - 2017-07-11 11:50 +0200
          Re: [GIT pull] irq updates for 4.13 Tony Lindgren <tony@atomide.com> - 2017-07-11 16:00 +0200
            Re: [GIT pull] irq updates for 4.13 Thomas Gleixner <tglx@linutronix.de> - 2017-07-11 16:50 +0200
              Re: [GIT pull] irq updates for 4.13 Thomas Gleixner <tglx@linutronix.de> - 2017-07-11 17:10 +0200
                Re: [GIT pull] irq updates for 4.13 Tony Lindgren <tony@atomide.com> - 2017-07-11 17:50 +0200
              Re: [GIT pull] irq updates for 4.13 Linus Torvalds <torvalds@linux-foundation.org> - 2017-07-11 17:50 +0200
                Re: [GIT pull] irq updates for 4.13 Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-07-11 18:20 +0200
                Re: [GIT pull] irq updates for 4.13 Tony Lindgren <tony@atomide.com> - 2017-07-11 18:20 +0200
                Re: [GIT pull] irq updates for 4.13 Thomas Gleixner <tglx@linutronix.de> - 2017-07-11 19:20 +0200
                Re: [GIT pull] irq updates for 4.13 Tony Lindgren <tony@atomide.com> - 2017-07-11 19:40 +0200
                Re: [GIT pull] irq updates for 4.13 Thomas Gleixner <tglx@linutronix.de> - 2017-07-11 18:30 +0200
                Re: [GIT pull] irq updates for 4.13 Tony Lindgren <tony@atomide.com> - 2017-07-11 18:40 +0200
                Re: [GIT pull] irq updates for 4.13 Linus Torvalds <torvalds@linux-foundation.org> - 2017-07-11 18:40 +0200
                Re: [GIT pull] irq updates for 4.13 Thomas Gleixner <tglx@linutronix.de> - 2017-07-11 20:00 +0200
                Re: [GIT pull] irq updates for 4.13 Linus Torvalds <torvalds@linux-foundation.org> - 2017-07-11 20:20 +0200
                Re: [GIT pull] irq updates for 4.13 Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-07-11 23:40 +0200
                Re: [GIT pull] irq updates for 4.13 Thomas Gleixner <tglx@tglx.de> - 2017-07-12 00:10 +0200
                Re: [GIT pull] irq updates for 4.13 Linus Torvalds <torvalds@linux-foundation.org> - 2017-07-12 00:10 +0200
                Re: [GIT pull] irq updates for 4.13 Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-07-12 01:00 +0200
                Re: [GIT pull] irq updates for 4.13 Tony Lindgren <tony@atomide.com> - 2017-07-12 07:30 +0200
                Re: [GIT pull] irq updates for 4.13 Pavel Machek <pavel@ucw.cz> - 2017-07-15 22:30 +0200
                Re: [GIT pull] irq updates for 4.13 Tony Lindgren <tony@atomide.com> - 2017-07-17 08:30 +0200
                Re: [GIT pull] irq updates for 4.13 Linus Torvalds <torvalds@linux-foundation.org> - 2017-07-17 22:10 +0200
                Re: [GIT pull] irq updates for 4.13 Pavel Machek <pavel@ucw.cz> - 2017-07-17 23:40 +0200
              Re: [GIT pull] irq updates for 4.13 Grygorii Strashko <grygorii.strashko@ti.com> - 2017-07-11 17:50 +0200
                Re: [GIT pull] irq updates for 4.13 Tony Lindgren <tony@atomide.com> - 2017-07-11 18:20 +0200
                Re: [GIT pull] irq updates for 4.13 Geert Uytterhoeven <geert@linux-m68k.org> - 2017-07-12 10:10 +0200
            Re: [GIT pull] irq updates for 4.13 Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-07-11 16:50 +0200
              Re: [GIT pull] irq updates for 4.13 Tony Lindgren <tony@atomide.com> - 2017-07-11 18:30 +0200
                Re: [GIT pull] irq updates for 4.13 Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-07-11 18:40 +0200
        Re: [GIT pull] irq updates for 4.13 Thomas Gleixner <tglx@linutronix.de> - 2017-07-11 12:00 +0200
          Re: [GIT pull] irq updates for 4.13 Thomas Gleixner <tglx@linutronix.de> - 2017-07-11 13:00 +0200
            Re: [GIT pull] irq updates for 4.13 Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-07-11 13:30 +0200
              Re: [GIT pull] irq updates for 4.13 Thomas Gleixner <tglx@linutronix.de> - 2017-07-11 15:30 +0200
              Re: [GIT pull] irq updates for 4.13 Marc Zyngier <marc.zyngier@arm.com> - 2017-07-11 16:00 +0200
                Re: [GIT pull] irq updates for 4.13 Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-07-11 16:50 +0200

csiph-web