linux-kernel - Re: USB mass storage and ARM cache coherency

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 2 Feb 2010 10:31:49 +0100
From:	Florian Fainelli <florian@...nwrt.org>
To:	Oliver Neukum <oliver@...kum.org>
Cc:	Andreas Mohr <andi@...as.de>,
	Catalin Marinas <catalin.marinas@....com>,
	Matthew Dharm <mdharm-kernel@...-eyed-alien.net>,
	Sergei Shtylyov <sshtylyov@...mvista.com>,
	Ming Lei <tom.leiming@...il.com>, linux-usb@...r.kernel.org,
	"linux-kernel" <linux-kernel@...r.kernel.org>,
	Sebastian Siewior <bigeasy@...utronix.de>,
	Greg KH <greg@...ah.com>, Takashi Iwai <tiwai@...e.de>
Subject: Re: USB mass storage and ARM cache coherency

On Tuesday 02 February 2010 07:58:42 Oliver Neukum wrote:
> Am Montag, 1. Februar 2010 23:30:01 schrieb Andreas Mohr:
> > I took some time to add your patch to ehci-q.c / ohci-q.c
> > (for my *hci-ssb.c ASUS WL-500gP v2), on my now heavily patched-up
> > 2.6.31.9, but UNFORTUNATELY it kept locking up the same way as always
> > when stopping playback despite being damn sure this time that this patch
> > could have the potential to finally fix it ;)
> > (I had to replace memory.h with page.h on my arch though, to fix the
> > build)
> 
> A moment please. You are using ehci and ohci. Both are using dma.
> Why does this issue arise?

Because the BCM4710 CPU core is know to have cache problems and we have been 
trying to workaround this, your problem Andreas is imho a different one.
--
Regards, Florian
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/