Andrew Morton wrote: > On Fri, 1 Jun 2007 14:08:37 -0700 > [EMAIL PROTECTED] wrote: > > Please follow up via emailed reply-to-all, rather than via the bugzilla web > interface, thanks. > > Michal, please track this as a post-2.6.21 regression. > >> http://bugzilla.kernel.org/show_bug.cgi?id=8565 >> >> Summary: panic on s3 resume with uhci_hcd module >> Kernel Version: 2.6.22.rc3 / git 2007-06-01 >> Status: NEW >> Severity: normal >> Owner: [EMAIL PROTECTED] >> Submitter: [EMAIL PROTECTED] >> >> >> Most recent kernel where this bug did *NOT* occur: FC6 2.6.20 kernels / >> 2.6.21.3 >> Distribution: Fedora 7 >> Hardware Environment: Dell Inspiron 8500 >> Software Environment: >> Problem Description: I have just done a clean install of fedora 7 on my >> machine, >> replacing Fedora Core 6. >> When I resume my machine from suspend, it panics. My display is not >> reiinitialised, so using /sys/power/pm_trace I identified that the device is >> the >> following; >> >> 00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM >> (ICH4/ICH4-L/ICH4-M) >> USB UHCI Controller #1 (rev 03) >> >> With the current fedora kernel (kernel-2.6.21-1.3194.fc7) I see the following >> backtrace on bootup: >> >> Jun 1 09:00:39 echo kernel: ACPI: PCI Interrupt 0000:01:00.0[A] -> Link >> [LNKA] >> -> GSI 11 (level, low) -> IRQ 11 >> Jun 1 09:00:39 echo kernel: BUG: warning at >> kernel/softirq.c:138/local_bh_enable() (Not tainted) >> Jun 1 09:00:39 echo kernel: [<c042b0cf>] local_bh_enable+0x45/0x92 >> Jun 1 09:00:39 echo kernel: [<c06002bd>] cond_resched_softirq+0x2c/0x42 >> Jun 1 09:00:39 echo kernel: [<c059adf3>] release_sock+0x4f/0x9d >> Jun 1 09:00:39 echo kernel: [<c05c670d>] tcp_sendmsg+0x90b/0x9f9 >> Jun 1 09:00:39 echo kernel: [<c05dec95>] inet_sendmsg+0x3b/0x45 >> Jun 1 09:00:39 echo kernel: [<c0598731>] sock_aio_write+0xf6/0x102 >> Jun 1 09:00:39 echo kernel: [<c04754ee>] do_sync_write+0xc7/0x10a >> Jun 1 09:00:39 echo kernel: [<c0436e71>] autoremove_wake_function+0x0/0x35 >> Jun 1 09:00:39 echo kernel: [<c0475d47>] vfs_write+0xbc/0x154 >> Jun 1 09:00:39 echo kernel: [<c0476342>] sys_write+0x41/0x67 >> Jun 1 09:00:39 echo kernel: [<c0404f70>] syscall_call+0x7/0xb >> Jun 1 09:00:39 echo kernel: [<c0600000>] __sched_text_start+0x6e8/0x89e >> Jun 1 09:00:39 echo kernel: ======================= > > I wouldn't worry about this warning. There was a busted Ingo patch whcih > later got fixed - I suspect it leaked into this Fedora release and it > hasn't got fixed yet. > > >> I have since pulled Linus' git linux-2.6 tree (version no was 2.6.22-rc3). I >> built this using the default config options. In this version I still get the >> kernel panic, but I do not see the backtrace during bootup. >> >> Removing the uhci_hcd module allows the machine to resume without panic'ing. >> >> Last weekend I was testing the 2.6.21.3 kernel on my fc6 install and this did >> not panic, although exactly what options I used have been lost due to the f7 >> install. >> > > > I don't understand what you mean by "the machine panics". Does it oops? > Does it call panic()? If so, how do you know this, if your only means of > debugging it was pm_trace? I mean, it could be that the machine was > hanging during uhci resume rather than oopsing or panicing?
My caps-lock and scroll-lock lights started flashing almost immediately. Sys-Rq + B still works to reboot. > > > Anyway, it might be worth setting up netconsole > (Documentation/networking/netconsole.txt) to see if you can get more > information out of the machine. > > Sometimes netconsole doesn't work very well across suspend/resume, because > the net device itself gets suspended too. But often it emits useful info. > > Thanks. I'll give it a go. Simon ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
