Re: Machine crashes right *after* ~successful resume

[Wilmer van der Gaast]

Hello,

On 16-10-14 05:32, Yinghai Lu wrote:
> Can you please try attached patch? that should workaround the problem.
Sadly, no luck. (I do assume you meant me to use the patch against a 
clean 3.17 tree *without* yesterday's revert patch applied.) Back to a 
crash at/after the third resume:

[  372.502897] usb 3-1.1: reset high-speed USB device number 3 using 
ehci-pci
[  372.678765] usb 2-1.5: reset low-speed USB device number 3 using ehci-pci
[  373.398437] Clocksource tsc unstable (delta = -136457848 ns)
[  373.897503] Switched to clocksource hpet
[  373.897536] PM: resume of devices complete after 2143.535 msecs
[  373.898225] r8169 0000:07:00.0 eth0: link up
[  374.319311] Restarting tasks ... done.
(And then nothing.)

Interestingly I did see the "resume of devices" time grow on each resume 
again this time. I'll put the full dmesg dump in the same place like 
before: http://gaast.net/~wilmer/.lkml/

There's a lspci -vv dump there as well, as Bjorn asked for. I'll file a 
bug on bugzilla tonight.

> as some driver is using pci_enable_device in .resume instead of
> pci_renable_device....
Maybe this doesn't matter, but I could reproduce this issue even with no 
modules loaded at all (so barebone that I couldn't even mount my rootfs 
and had to do this testing in the initrd), so with only mainline kernel 
code running.


Thanks,

Wilmer v/d Gaast.

--
+-------- .''`.     - -- ---+  +        - -- --- ---- ----- ------+
| wilmer : :'  :  gaast.net |  | OSS Programmer   www.bitlbee.org |
| lintux `. `~'  debian.org |  | Full-time geek  wilmer.gaast.net |
+--- -- -  ` ---------------+  +------ ----- ---- --- -- -        +
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/