Hi again I still have an issue with the new kernel recognising my weather station. After switching off amd-iommu I was able to connect to the weather station, but each morning shortly after 3am the USB connection is lost and only a reboot restores it. Dec 28 03:21:54 ferguson kernel: ohci-pci 0000:00:13.0: frame counter not updating; disabled Dec 28 03:21:54 ferguson kernel: ohci-pci 0000:00:13.0: HC died; cleaning up Dec 28 03:21:54 ferguson kernel: usb 7-2: USB disconnect, device number 2 Dec 28 03:21:55 ferguson systemd-udevd: error opening USB device 'descriptors' file I have changed back to the older kernel for now. Also, I am getting ABRT messages about tracker. See below. [root@ferguson ~]# abrt-cli list --since 1451259242 id 6c0186ed5e837092c0f71ac51b2eadb31cf59a54 reason: tracker-miner-fs killed by SIGSEGV time: Thu 24 Dec 2015 11:43:51 AEDT cmdline: /usr/libexec/tracker-miner-fs package: tracker-0.16.2-11.el7 uid: 0 (root) count: 3 Directory: /var/spool/abrt/ccpp-2015-12-24-11:43:51-23035 [root@ferguson ~]# [System Logs]: Dec 24 11:43:50 ferguson.maidment.me gnome-session[22614]: (tracker-miner-fs:23035): GLib-CRITICAL **: g_timer_continue: assertion 'timer->active == FALSE' failed Dec 24 11:43:51 ferguson.maidment.me gnome-session[22614]: (tracker-miner-fs:23035): GLib-GObject-CRITICAL **: g_object_ref: assertion 'G_IS_OBJECT (object)' failed Dec 24 11:43:51 ferguson.maidment.me gnome-session[22614]: (tracker-miner-fs:23035): GLib-GIO-CRITICAL **: g_output_stream_clear_pending: assertion 'G_IS_OUTPUT_STREAM (stream)' failed [User Logs]: Dec 24 11:43:50 ferguson.maidment.me gnome-session[22614]: (tracker-miner-fs:23035): GLib-CRITICAL **: g_timer_continue: assertion 'timer->active == FALSE' failed Dec 24 11:43:51 ferguson.maidment.me gnome-session[22614]: (tracker-miner-fs:23035): GLib-GObject-CRITICAL **: g_object_ref: assertion 'G_IS_OBJECT (object)' failed Dec 24 11:43:51 ferguson.maidment.me gnome-session[22614]: (tracker-miner-fs:23035): GLib-GIO-CRITICAL **: g_output_stream_clear_pending: assertion 'G_IS_OUTPUT_STREAM (stream)' failed Cheers Bill -----Original message----- > From:Bill Maidment <[log in to unmask]> > Sent: Friday 18th December 2015 12:19 > To: Connie Sieh <[log in to unmask]> > Cc: Pat Riehecky <[log in to unmask]>; [log in to unmask] > Subject: RE: [SCIENTIFIC-LINUX-DEVEL] Posted for testing: 7.2 security updates (SL7) > > Further investigation on the weather station server has revealed masses of the following errors: > kernel: AMD-Vi: Event logged [IO_PAGE_FAULT device=00:13.0 domain=0x0008 address=0x0000000000000080 flags=0x0020] > > It would appear the new kernel has picked up the IOMMU error reported in RH bugzilla 1274527 > > Cheers > Bill > > -----Original message----- > > From:Bill Maidment <[log in to unmask]> > > Sent: Thursday 17th December 2015 17:02 > > To: Connie Sieh <[log in to unmask]> > > Cc: Pat Riehecky <[log in to unmask]>; [log in to unmask] > > Subject: RE: [SCIENTIFIC-LINUX-DEVEL] Posted for testing: 7.2 security updates (SL7) > > > > Hi > > I've had a chance to reinstall the new kernel on the problem machine again, and it still kernel panics on boot. This machine has usb keyboard and mouse. > > I have another machine which refuses to recognize my usb weather station (Bus 005 Device 002: ID 0fde:ca01 Oregon Scientific WMRS200 weather station), but is quite happy on the older kernel. > > I believe the new kernel has a usb issue. > > > > Cheers > > Bill > > > > -----Original message----- > > > From:Connie Sieh <[log in to unmask]> > > > Sent: Wednesday 16th December 2015 9:57 > > > To: Bill Maidment <[log in to unmask]> > > > Cc: Pat Riehecky <[log in to unmask]>; [log in to unmask] > > > Subject: RE: [SCIENTIFIC-LINUX-DEVEL] Posted for testing: 7.2 security updates (SL7) > > > > > > On Tue, 15 Dec 2015, Bill Maidment wrote: > > > > > > > Hi Pat I have tested the updates from sl-testing on several machines and > > > > all bar one have not caused any issues. The one issue I had was with an > > > > older machine which gives a kernel panic on boot using > > > > kernel-3.10.0-327.3.1.el7.x86_64 If I revert to > > > > kernel-3.10.0-229.20.1.el7.x86_64 then the machine boots OK and > > > > everything runs OK. > > > > > > > > I don't have access to this particular machine today, but I will try a > > > > reinstall of the new kernel tomorrow (Australian time) and see if I can > > > > replicate the issue. > > > > > > > > Cheers > > > > Bill Maidment > > > > > > > > > > > > > > > Bill, > > > > > > Thanks for testing. > > > -- > > > > > > Connie J. Sieh > > > Computing Services Specialist III > > > > > > Fermi National Accelerator Laboratory > > > 630 840 8531 office > > > > > > http://www.fnal.gov > > > [log in to unmask] > > > > > > > > > > > >