Public bug reported: Since updating my Lubuntu 16.10 system (linux-image-4.8.0-37-generic to linux-image-4.8.0-38-generic) the kernel panics as soon as I plug in the Wifi adapter (Edimax EW-7612UAn Wifi USB Adapter). The coredump logs BUG: unable to handle kernel NULL pointer dereference @0000000000000048 IP: [<ffffffffc0786647>] rtl_lps_leave+0x17/0x50 [rtlwifi] PGD 0 Ooops: 0000 [#1] SMP This is followed by the Modules linked in, Hardware info, Stack trace. At the end of the trace it says: Kernel panic - not syncing: Fatal exception in interrupt.
I uploaded a console screenshot to my google drive: https://goo.gl/medcXj and I didn't find anything suspicious in syslog or kernel log, most probably because the kernel panics almost instantly after plugging the usb adapter in. Updating to linux-image-4.8.0-39-generic does not solve the issue as well. Only way to work around the issue is to select the 4.8.0-37 image from the grub bootmenu. The problem is not related to a specific USB port. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Description changed: - Since updating my Lubuntu 16.10 system (linux-image-4.8.0-37-generic to linux-image-4.8.0-38-generic) the kernel panics as soon as I plug in the Wifi Adapter (Edimax EW-7612UAn Wifi USB Adapter). - The coredump logs + Since updating my Lubuntu 16.10 system (linux-image-4.8.0-37-generic to linux-image-4.8.0-38-generic) the kernel panics as soon as I plug in the Wifi adapter (Edimax EW-7612UAn Wifi USB Adapter). + The coredump logs BUG: unable to handle kernel NULL pointer dereference @0000000000000048 IP: [<ffffffffc0786647>] rtl_lps_leave+0x17/0x50 [rtlwifi] PGD 0 Ooops: 0000 [#1] SMP This is followed by the Modules linked in, Hardware info, Stack trace. At the end of the trace it says: Kernel panic - not syncing: Fatal exception in interrupt. - I uploaded a console screenshot to my google drive: https://goo.gl/medcXj - and I didn't find anything suspicious in syslog or kernel log, most probably because the kernel panics almost instantly after plugging the usb adapter in. + I uploaded a console screenshot to my google drive: https://goo.gl/medcXj + and I didn't find anything suspicious in syslog or kernel log, most probably because the kernel panics almost instantly after plugging the usb adapter in. Updating to linux-image-4.8.0-39-generic does not solve the issue as well. Only way to work around the issue is to select the 4.8.0-37 image from the grub bootmenu. The problem is not related to a specific USB port. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1669815 Title: Kernel panic when plugging in USB Wifi USB adapter To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1669815/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
