Alan Stern wrote: [...] > After looking at the debugging output, no. That "invalid opcode" is a red > herring. What you encountered this time was a BUG() in the source code of > start_unlink_async() in drivers/usb/host/ehci-q.c: > > #ifdef DEBUG > assert_spin_locked(&ehci->lock); > if (ehci->reclaim > || (qh->qh_state != QH_STATE_LINKED > && qh->qh_state != QH_STATE_UNLINK_WAIT) > ) > BUG (); > #endif > > You could try putting a printk() just before the BUG() to display the > values of ehci->reclaim and qh->qh_state. Maybe also change the BUG() to > ehci->reclaim=0 qh->qh_state=5 > WARN(), which might help prevent your system from crashing so badly. > WARN didn't help much. I then got the warning twice, followed by another BUG: process klogd ehci_irq usb_hcd_irq handle_IRQ_event handle_fasteio_irq do_IRQ
So I set it back to BUG. Crashing hard isn't so bad when I know what is coming - I simply remount everything synchronously before trying. I hope these printk's help. I can add more of them too, if needed. Big transfers seems to bring out the worst - I always get the crash on the first megabyte now. During boot I get lots of those "Hardware error, end-of-data detected" messages, but I've never seen it crash during bootup. Helge Hafting ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
