From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lukasz Majewski Date: Wed, 12 Nov 2014 22:49:54 +0100 Subject: [U-Boot] [PATCH v2] test: ums: Add sleep before unmount directory In-Reply-To: <5463A2D5.1030906@wwwdotorg.org> References: <1415269420-6528-1-git-send-email-l.majewski@samsung.com> <1415365555-9790-1-git-send-email-l.majewski@samsung.com> <20141107215404.3580138334A@gemini.denx.de> <545D40E1.2030700@wwwdotorg.org> <20141107230307.791553833CD@gemini.denx.de> <20141112152949.1fe6ce3c@amdc2363> <20141112164538.17607380133@gemini.denx.de> <5463A2D5.1030906@wwwdotorg.org> Message-ID: <20141112224954.4ec02949@jawa> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Wed, 12 Nov 2014 11:11:33 -0700 Stephen Warren wrote: > On 11/12/2014 09:45 AM, Wolfgang Denk wrote: > > Dear Lukasz, > > > > In message <20141112152949.1fe6ce3c@amdc2363> you wrote: > >> > >>> But this is a bug. Papering over is not a good idea. It should > >>> be analyzed, reported, and finally fixed. > >> > >> I've debugged the script with strace. > > > > Thanks a lot for that! > > > >> The problem is with umount() syscall: > > ... > >> I need to debug the syscall in the kernel. > > > > I have a gut feeling that this might be a problem somewhere with the > > USB stuff that is involved here. Maybe enabling some degug messages > > for the USB subsystem gives some more information? > > If this really is related to USB only, it may be worth asking on the > linux-usb mailing list to see if anyone already unerstands the issue. Frankly speaking, I'm personally curious why such things happen. I may look into the issue in my "spare :-)" time. In spite of this, I agree with Stephen: > > Irrespective of all this though, even if there is a kernel issue and > it can be fixed, I still think we should apply this patch, because > the issue currently affects people. At the very least it will until > some kernel fix is rolled out to everyone's distro, which will be a > while no matter what. +1 The problem seems to be with long time running linux. The error seems to be orthogonal to our u-boot's UMS work. > _______________________________________________ > U-Boot mailing list > U-Boot at lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot Best regards, Lukasz Majewski -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 198 bytes Desc: not available URL: