On 10/10/2017 12:07 PM, Ben Greear wrote:
I loaded a crashing firmware (it crashes early since it ran OOM), and then tried to rmmod it. rmmod hangs, with this stack:
Looks like this is a hang related to napi, and I had a patch from an older kernel that is probably not needed anymore...maybe it causes the issue. I'll test with that removed... Thanks, Ben
[root@ben-ota-2 ~]# cat /proc/32491/stack [<ffffffff8113c51d>] flush_work+0x1fd/0x2d0 [<ffffffff8113f031>] __cancel_work_timer+0x111/0x190 [<ffffffff8113f0bb>] cancel_work_sync+0xb/0x10 [<ffffffffa0b0a054>] ath10k_core_unregister+0x14/0xa0 [ath10k_core] [<ffffffffa07c7dcd>] ath10k_pci_remove+0x2d/0x70 [ath10k_pci] [<ffffffff81528834>] pci_device_remove+0x34/0xb0 [<ffffffff81656b18>] device_release_driver_internal+0x158/0x210 [<ffffffff81656c1b>] driver_detach+0x3b/0x80 [<ffffffff81655ad3>] bus_remove_driver+0x53/0xd0 [<ffffffff81657737>] driver_unregister+0x27/0x40 [<ffffffff81526ff4>] pci_unregister_driver+0x24/0x90 [<ffffffffa07ca922>] ath10k_pci_exit+0x10/0x6ee [ath10k_pci] [<ffffffff811c64c1>] SyS_delete_module+0x1e1/0x2a0 [<ffffffff81003d34>] do_syscall_64+0x64/0x140 [<ffffffff819b77c9>] entry_SYSCALL64_slow_path+0x25/0x25 [<ffffffffffffffff>] 0xffffffffffffffff
-- Ben Greear <greearb@xxxxxxxxxxxxxxx> Candela Technologies Inc http://www.candelatech.com
