On Fri, Jun 7, 2019 at 2:41 PM Balakrishnan Balasubramanian <[email protected]> wrote: > > > This is because the device is removed from the PCI bus. Nothing from > > iwlwifi side can be done. > > I am sure the device is not physically disturbed. If that was the case, > should it not stay down when restarting the system?
Not necessarily. The disturbance may impact ASPM or something alike. > > > If that happens upon suspend / resume, I know there are been fixes in > > PCI bus driver. > > To my knowledge I have disabled all power/suspend features and I don't see > releated logs in journal except the below. Not sure if relevant. > > Jun 03 21:33:14 zadesk kernel: wlan0: Limiting TX power to 14 (17 - 3) > dBm as advertised by d4:5d:df:25:ee:90 > > Is there a way to restart the module safely without restarting the system? echo 1 > /sys/module/iwlwifi/devices/0000\:02\:00.0/remove echo 1 > /sys/bus/pci/rescan > > Regards, > Bala > > > On Friday, June 7, 2019 5:25:41 AM EDT Emmanuel Grumbach wrote: > > On Fri, Jun 7, 2019 at 5:22 AM Balakrishnan Balasubramanian > > > > <[email protected]> wrote: > > > I am using iwd demon for wifi. Once a while I loose connectivity. > > > Restarting the demon does not help. But once I restart the system, it > > > starts working fine. Attaching stack trace from journal. > > > > This is because the device is removed from the PCI bus. Nothing from > > iwlwifi side can be done. > > If that happens upon suspend / resume, I know there are been fixes in > > PCI bus driver. If not, check that the device sits correctly in its > > socket. > > > > > Regards, > > > Bala > > > > > > > > > ---------- Forwarded message ---------- > > > From: Denis Kenzior <[email protected]> > > > To: Balakrishnan Balasubramanian <[email protected]>, [email protected] > > > Cc: > > > Bcc: > > > Date: Thu, 06 Jun 2019 18:07:40 -0500 > > > Subject: Re: iwd crashes randomly > > > Hi Bala, > > > > > > On 06/06/2019 06:00 PM, Balakrishnan Balasubramanian wrote: > > > > Sometimes after a week and sometimes after two days. Once crashed, > > > > restarting the service does not help. Had to restart the computer. > > > > Attaching stack trace from journal. > > > > > > That implies that your kernel is crashing, not iwd. The attached log > > > shows a kernel stack trace somewhere inside iwlwifi module. I would > > > post this trace to [email protected]. > > > > > > If you have an associated iwd backtrace, then certainly post this here, > > > but if the kernel module is crashing, there isn't much we can do. > > > > > > Regards, > > > -Denis > > > >
