What the heck happened to your logs? It looks like about 75% of the data is being lost from the log file...
Matt On Tue, Jul 31, 2007 at 10:47:40PM +0100, Kostas Peletidis wrote: > Matthew Dharm wrote: > >It would be interesting to turn on CONFIG_USB_STORAGE_DEBUG and capture the > >debugging output. > > > >Matt > > > >On Tue, Jul 31, 2007 at 08:37:31PM +0100, Kostas Peletidis wrote: > > > >>Matthew Dharm wrote: > >> > >>>Did you change any USB-related compile options between the two builds? > >>> > >>>Do you have usb device suspend enabled? > >>> > >>>Can you tell (via top) where the 100% CPU usage is coming from (i.e. df, > >>>usb-storage thread, syswait, etc)? > >>> > >>>Matt > >>> > >>> > >>> > >>Hi Matt, > >> > >>The most relevant USB configuration option I changed seems to be > >>"CONFIG_USB_DEVICE_CLASS=y". I have also added module support for > >>CONFIG_USB_USBNET but I don't think this is related. Please find > >>attached the kernel configuration. > >> > >>USB suspend is disabled (# CONFIG_USB_SUSPEND is not set) and when I run > >>top and press Shift+P I see that df is at the top of the list, followed > >>by Xorg and usb-storage. The load average reaches 1.17. Interestingly > >>enough, when df is at the top of the list I see roughly "90%wa" which I > >>presume means the CPU spends most of the time waiting. Here are the > >>times derived from "time df": > >> > >>real 1m4.612s > >>user 0m0.006s > >>sys 0m2.867s > >> > >>It is worth mentioning that the problem happens only the first time I > >>run df. Subsequent runs of df work normally. If I unmount the disk and > >>remount it I see the same problem. > >> > >>Regards, > >>Kostas > >> > > > > > > > >>------------------------------------------------------------------------- > >>This SF.net email is sponsored by: Splunk Inc. > >>Still grepping through log files to find problems? Stop. > >>Now Search log events and configuration files using AJAX and a browser. > >>Download your FREE copy of Splunk now >> http://get.splunk.com/ > >>_______________________________________________ > >>linux-usb-devel@lists.sourceforge.net > >>To unsubscribe, use the last form field at: > >>https://lists.sourceforge.net/lists/listinfo/linux-usb-devel > >> > > > > > > > I enabled usb storage debugging and now I get a lot of messages. It > seems to me that part of the traced information is lost e.g. there is a > message "kernel: <>[ 125.105000] usb-stora transfer result 0x0" which > seems to have some characters missing. > > I noticed that now top shows roughly 33%us and 67%sy usage(no waiting > percentage this time, however the problem is still there) probably > because the debugging code uses a lot of cpu time.Apart from that I see > quite a lot of "usb-storage: Attempting to get CSW..." messages. > > I don't know what to look for so perhaps I missed some more important > messages. Can you please have a look at the attached file? Thank you. > > Regards, > Kostas > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Splunk Inc. > Still grepping through log files to find problems? Stop. > Now Search log events and configuration files using AJAX and a browser. > Download your FREE copy of Splunk now >> http://get.splunk.com/ > _______________________________________________ > linux-usb-devel@lists.sourceforge.net > To unsubscribe, use the last form field at: > https://lists.sourceforge.net/lists/listinfo/linux-usb-devel -- Matthew Dharm Home: [EMAIL PROTECTED] Maintainer, Linux USB Mass Storage Driver NYET! The evil stops here! -- Pitr User Friendly, 6/22/1998
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