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
| ||
|
Date: Mon, 25 Jan 2016 15:28:33 +0100 From: Robert Jarzmik <robert.jarzmik@...e.fr> To: Marcel Ziswiler <marcel@...wiler.com> Cc: Linus Walleij <linus.walleij@...aro.org>, Alexandre Courbot <gnurou@...il.com>, linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [REGRESSION] gpio: pxa: change initcall level second attempt Marcel Ziswiler <marcel@...wiler.com> writes: > Hi Robert > > I tried latest next-20160122 on Colibri PXA270 with a previously > working device tree and got the following DM9000 Ethernet driver issue: > > [ 1.062495] dm9000 8000000.ethernet: insufficient resources > [ 1.068439] dm9000 8000000.ethernet: not found (-2). > [ 1.073451] dm9000: probe of 8000000.ethernet failed with error -2 > > Digging deeper I debugged it to a missing interrupt ressource. A > subsequent git bisect blamed your patch changing the initcall level and > indeed just reverting that made it all work again. > > I then also noticed the following message upon boot in the failing case > which is probably related: > > [ 0.175995] irq: no irq domain found for /pxabus/gpio@...00000 ! > > Have you seen this as well or do you know how exactly that should be > worked around? Hi Marcel, I haven't seen that before on my devicetree boards, I will try this evening on top of next-20160125. Could you activate the debug logs in drivers/of/irq.c please, and send me privately your boot dmesg ? And I'd like to see your board .dts file and your .config also, to compare with mine for the mioa701. I think in your dm9000 case we have this callstack : - of_irq_get() of_irq_parse_one() => fails, for an unknown reason to me => I would have expected it return 0 => the following irq_find_host() would return -EPROBE_DEFER, that's what I'd expect irq_create_of_mapping() irq_create_fwspec_mapping() => error message What is probable is that gpio-pxa was not probed yet, and this triggers the error. What I don't understand is why you don't end up with -EPROBE_DEFER, that's why I'd like to have your logs. Cheers. -- Robert
Powered by blists - more mailing lists