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Re: [PATCH] USB: fix interrupt disabling for HCDs with shared interrupt handlers

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From: Stefan Becker <Stefan.Becker@...>
To: ext Greg KH <gregkh@...>, <linux-usb@...>
Cc: ext Alan Stern <stern@...>, ext David Brownell <david-b@...>, <linux-kernel@...>, Linus Torvalds <torvalds@...>, ext Leonardo Chiquitto <leonardo.lists@...>
Subject: Re: [PATCH] USB: fix interrupt disabling for HCDs with shared interrupt handlers
Date: Tuesday, July 1, 2008 - 3:15 pm

Hi,

ext Greg KH wrote:

As I wrote in the first mail of this thread the problem was uncovered on my machine by the following commit from 2.6.24-development:

 commit e9df41c5c5899259541dc928872cad4d07b82076
 USB: make HCDs responsible for managing endpoint queues

The interrupt problem exists also in 2.6.23 (and previous) but the USB code was not affected, as the old versions of the functions were using spin_lock_irqsave().

I just applied my patch to 2.6.24 & 2.6.25: it applies fine and compiles without problem. So it could be submitted to the 2.6.24.X and 2.6.25.X branches too.

Regards,

	Stefan

---
Stefan Becker
E-Mail: Stefan.Becker@nokia.com
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Messages in current thread:
[REGRESSION] 2.6.24/25: random lockups when accessing extern..., Stefan Becker, (Sun Jun 22, 12:55 pm)
Re: [REGRESSION] 2.6.24/25: random lockups when accessing ex..., Rene Herman, (Sun Jun 22, 1:42 pm)
Re: [REGRESSION] 2.6.24/25: random lockups when accessing ex..., Alan Stern, (Sun Jun 22, 3:31 pm)
Re: [REGRESSION] 2.6.24/25: random lockups when accessing ex..., Stefan Becker, (Mon Jun 23, 11:52 am)
Re: [REGRESSION] 2.6.24/25: random lockups when accessing ex..., Alan Stern, (Mon Jun 23, 2:10 pm)
Re: [REGRESSION] 2.6.24/25: random lockups when accessing ex..., Stefan Becker, (Tue Jun 24, 2:41 pm)
Re: [REGRESSION] 2.6.24/25: random lockups when accessing ex..., Alan Stern, (Tue Jun 24, 5:15 pm)
Re: [REGRESSION] 2.6.24/25: random lockups when accessing ex..., Stefan Becker, (Wed Jun 25, 11:52 am)
Re: [REGRESSION] 2.6.24/25: random lockups when accessing ex..., Alan Stern, (Wed Jun 25, 2:38 pm)
Re: [REGRESSION] 2.6.24/25: random lockups when accessing ex..., Stefan Becker, (Thu Jun 26, 2:31 am)
Re: [REGRESSION] 2.6.24/25: random lockups when accessing ex..., Alan Stern, (Thu Jun 26, 10:25 am)
Re: [REGRESSION] 2.6.24/25: random lockups when accessing ex..., Stefan Becker, (Thu Jun 26, 6:07 pm)
Re: [REGRESSION] 2.6.24/25: random lockups when accessing ex..., Alan Stern, (Fri Jun 27, 12:10 pm)
Re: [REGRESSION] 2.6.24/25: random lockups when accessing ex..., Stefan Becker, (Sat Jun 28, 11:39 am)
Re: [REGRESSION] 2.6.24/25: random lockups when accessing ex..., Alan Stern, (Sat Jun 28, 12:53 pm)
BUG in 2.6.26-rc8 interrupt handling, Becker Stefan (Nokia-D/Salo)..., (Sat Jun 28, 3:34 pm)
Re: BUG in 2.6.26-rc8 interrupt handling, David Brownell, (Sat Jun 28, 3:51 pm)
PATCH: 2.6.26-rc8: Fix IRQF_DISABLED for shared interrupts, Stefan Becker, (Sun Jun 29, 10:57 am)
Re: PATCH: 2.6.26-rc8: Fix IRQF_DISABLED for shared interrupts, David Brownell, (Sun Jun 29, 11:09 pm)
Re: PATCH: 2.6.26-rc8: Fix IRQF_DISABLED for shared interrupts, Stefan Becker, (Mon Jun 30, 5:34 am)
Re: PATCH: 2.6.26-rc8: Fix IRQF_DISABLED for shared interrupts, David Brownell, (Mon Jun 30, 7:15 am)
Re: PATCH: 2.6.26-rc8: Fix IRQF_DISABLED for shared interrupts, David Brownell, (Mon Jun 30, 3:57 pm)
Re: PATCH: 2.6.26-rc8: Fix IRQF_DISABLED for shared interrupts, Alan Stern, (Mon Jun 30, 10:37 am)
[PATCH] USB: fix interrupt disabling for HCDs with shared in..., Stefan Becker, (Mon Jun 30, 2:53 pm)
Re: [PATCH] USB: fix interrupt disabling for HCDs with share..., Alan Stern, (Mon Jun 30, 3:35 pm)
Re: [PATCH] USB: fix interrupt disabling for HCDs with share..., David Brownell, (Mon Jun 30, 4:31 pm)
[PATCH] USB: fix interrupt disabling for HCDs with shared in..., Stefan Becker, (Mon Jun 30, 5:26 pm)
Re: [PATCH] USB: fix interrupt disabling for HCDs with share..., Alan Stern, (Tue Jul 1, 10:11 am)
Re: [PATCH] USB: fix interrupt disabling for HCDs with share..., David Brownell, (Tue Jul 1, 12:22 pm)
[PATCH] USB: fix interrupt disabling for HCDs with shared in..., Stefan Becker, (Tue Jul 1, 12:19 pm)
Re: [PATCH] USB: fix interrupt disabling for HCDs with share..., Greg KH, (Tue Jul 1, 2:25 pm)
Re: [PATCH] USB: fix interrupt disabling for HCDs with share..., Stefan Becker, (Tue Jul 1, 3:15 pm)
Re: [PATCH] USB: fix interrupt disabling for HCDs with share..., Greg KH, (Tue Jul 1, 3:51 pm)
Re: [PATCH] USB: fix interrupt disabling for HCDs with share..., Alan Stern, (Tue Jul 1, 2:59 pm)
Re: [PATCH] USB: fix interrupt disabling for HCDs with share..., David Brownell, (Tue Jul 1, 3:21 pm)
Re: [PATCH] USB: fix interrupt disabling for HCDs with share..., Greg KH, (Tue Jul 1, 3:13 pm)
Re: [PATCH] USB: fix interrupt disabling for HCDs with share..., Leonardo Chiquitto, (Tue Jul 1, 10:19 am)
Re: [PATCH] USB: fix interrupt disabling for HCDs with share..., Alan Stern, (Mon Jun 30, 5:29 pm)
Re: [PATCH] USB: fix interrupt disabling for HCDs with share..., David Brownell, (Mon Jun 30, 5:48 pm)
Re: PATCH: 2.6.26-rc8: Fix IRQF_DISABLED for shared interrupts, Stefan Becker, (Mon Jun 30, 1:22 am)
Re: PATCH: 2.6.26-rc8: Fix IRQF_DISABLED for shared interrupts, Henrique de Moraes Holschuh..., (Mon Jun 30, 10:28 am)
Re: PATCH: 2.6.26-rc8: Fix IRQF_DISABLED for shared interrupts, Alan Cox, (Mon Jun 30, 10:26 am)
Re: [REGRESSION] 2.6.24/25: random lockups when accessing ex..., Stefan Becker, (Sat Jun 28, 10:36 am)
Re: [REGRESSION] 2.6.24/25: random lockups when accessing ex..., David Brownell, (Fri Jun 27, 12:07 pm)
Re: [REGRESSION] 2.6.24/25: random lockups when accessing ex..., Stefan Becker, (Sat Jun 28, 10:31 am)