Public bug reported:
I have a Raspberry Pi 2 running Ubuntu 16.10 without problems. I use
wicd to let it connect to my WiFi with a RTL8188CUS USB dongle. And
there's a RTL2838 DVB-T USB stick attached to monitor airplane positions
for Flightradar24.
After updateing the kernel from 4.8.0-1024, which runs flawlessly, to
-1025, there's a kernel panic happening 10-20 seconds after booting up
to the login prompt. I thought the -1026 fixed that, but it's still no
worky. The trace is scrolling so fast I can't read anything but the last
page:
[<808c76c8>] (sock_sendmsg) from...
[<808c7778>] (sock_write_iter) from...
[<802c39c8>] (new_sync_write) from...
[<802c3a4c>] (__vfs_write) from...
[<802c48d8>] (vfs_write) from...
[<802c5ab4>] (SyS_write) from...
Code: e5922004 e0033002 e3530000 0a00000a (e5902034)
---[ end trace 0f53d17efe0c6ba ]---
Kernel panic - not syncing: Fatal exception in interrupt
CPU2: stopping
CPU: 2 PID: 21 Comm: migration/2 Tainted: G D 4.8.0-1026-raspi2
#29-Ubuntu
Hardware name: BCM2709
[<801120ac>] (unwind_backtrace) from ...
[<8010d2dc>] (show_stack) from ...
[<8059c38c>] (handle_IPI) from ...
[<80101564>] (bcm2836_arm_irqchip_handle_irq) from [<80a49f3c>]
(__irq_svc+0x5c/0x7c)
Exception stack(0xbb99de68 to 0xbb99deb0)
de60: 00000000 00000004 00000000 00000001 bac05de0 00000001
de80: bac05dcc 00000000 a00e0013 00000000 bac05d6c bb99dedc bb99dee0 bb99deb8
dea0: 801d367c 801d35f4 600e0013 ffffffff
[<80a49f3c>] (__irq_svc) from ...
[<801d35f4>] (multi_cpu_stop) from ...
[<801d38ec>] (cpu_stopper_thread) from ...
[<8014b71c>] (smpboot_thread_fn) from ...
[<80147770>] (kthread) from [<80108e28>] (ret_from_fork+0x14/0x2c)
And then this block repeats with CPU3 and CPU0.
Going back to 4.8.0-1024 makes everything work again.
Affected packages:
linux-image-4.8.0-1025-raspi2:armhf (4.8.0-1025.28)
linux-image-4.8.0-1026-raspi2:armhf (4.8.0-1026.29)
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
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https://bugs.launchpad.net/bugs/1667160
Title:
Kernel panic with 4.8.0-1025 and -1026 on RasPi 2
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