Re: Hangs in r8152 connected to power management in kernels at least up v4.17-rc4

2018-05-25 Thread Jiri Slaby
On 05/16/2018, 03:36 PM, Jiri Slaby wrote: > So I assume it must be a problem of making usb->disconnect without prior > ndo->close (or alike). So according to my debug messages, I think this should workaround the problem: --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -3962,7 +3962

Re: Hangs in r8152 connected to power management in kernels at least up v4.17-rc4

2018-05-16 Thread Jiri Slaby
On 05/16/2018, 03:29 PM, Jiri Slaby wrote: > On 05/16/2018, 02:07 PM, Hayes Wang wrote: >> Oliver Neukum [mailto:oneu...@suse.com] >>> Sent: Wednesday, May 16, 2018 6:10 PM >> [...] Besides, I find a similar issue as following. https://www.spinics.net/lists/netdev/msg493512.html >>> >>> W

Re: Hangs in r8152 connected to power management in kernels at least up v4.17-rc4

2018-05-16 Thread Jiri Slaby
On 05/16/2018, 02:07 PM, Hayes Wang wrote: > Oliver Neukum [mailto:oneu...@suse.com] >> Sent: Wednesday, May 16, 2018 6:10 PM > [...] >>> Besides, I find a similar issue as following. >>> https://www.spinics.net/lists/netdev/msg493512.html >> >> Well, if we have an imbalance in NAPI it should strik

RE: Hangs in r8152 connected to power management in kernels at least up v4.17-rc4

2018-05-16 Thread Hayes Wang
Oliver Neukum [mailto:oneu...@suse.com] > Sent: Wednesday, May 16, 2018 6:10 PM [...] > > Besides, I find a similar issue as following. > > https://www.spinics.net/lists/netdev/msg493512.html > > Well, if we have an imbalance in NAPI it should strike whereever > it is used, not just in suspend().

Re: Hangs in r8152 connected to power management in kernels at least up v4.17-rc4

2018-05-16 Thread Oliver Neukum
Am Mittwoch, den 16.05.2018, 10:00 + schrieb Hayes Wang: > Oliver Neukum [mailto:oneu...@suse.com] > > Sent: Wednesday, May 16, 2018 4:27 PM > > [...] > > > > > > Would usb_autopm_get_interface() take a long time? > > > The driver would wake the device if it has suspended. > > > I have no ide

RE: Hangs in r8152 connected to power management in kernels at least up v4.17-rc4

2018-05-16 Thread Hayes Wang
Oliver Neukum [mailto:oneu...@suse.com] > Sent: Wednesday, May 16, 2018 4:27 PM [...] > > > > Would usb_autopm_get_interface() take a long time? > > The driver would wake the device if it has suspended. > > I have no idea about how usb_autopm_get_interface() works, so I don't know > how to help. >

Re: Hangs in r8152 connected to power management in kernels at least up v4.17-rc4

2018-05-16 Thread Oliver Neukum
Am Mittwoch, den 16.05.2018, 03:37 + schrieb Hayes Wang: > Oliver Neukum [mailto:oneu...@suse.com] > > > > Hi, > > > > I got reports about hangs with this trace: > > > > May 13 01:36:55 neroon kernel: INFO: task kworker/0:0:4 blocked for more > > than 60 seconds. > > May 13 01:36:55 neroon k

RE: Hangs in r8152 connected to power management in kernels at least up v4.17-rc4

2018-05-15 Thread Hayes Wang
Oliver Neukum [mailto:oneu...@suse.com] > > Hi, > > I got reports about hangs with this trace: > > May 13 01:36:55 neroon kernel: INFO: task kworker/0:0:4 blocked for more > than 60 seconds. > May 13 01:36:55 neroon kernel: Tainted: G U > 4.17.0-rc4-1.g8257a00-vanilla #1 > May 13 01:36

Hangs in r8152 connected to power management in kernels at least up v4.17-rc4

2018-05-15 Thread Oliver Neukum
Hi, I got reports about hangs with this trace: May 13 01:36:55 neroon kernel: INFO: task kworker/0:0:4 blocked for more than 60 seconds. May 13 01:36:55 neroon kernel: Tainted: G U 4.17.0-rc4-1.g8257a00-vanilla #1 May 13 01:36:55 neroon kernel: "echo 0 > /proc/sys/kernel/h