Am Dienstag, den 27.02.2018, 08:26 +0100 schrieb Marek Szyprowski:
I've noticed that USBnet/ASIX AX88772B USB driver produces deplock kernelIs that 32 bit?
warning ("inconsistent lock state") on Chromebook2 Peach-PIT board. No
special activity is needed to reproduce this issue, it happens almostNo, it is not known.
on every boot. ASIX USB ethernet is connected to XHCI USB host controller
on that board. Is it a known issue? Frankly I have no idea where to look
to fix it. The same adapter connected to EHCI ports on other boards basedOdd.
on the same SoC works fine without any warnings.
And the log with mentioned warning:Looks like this triggers (in usbnet):
[ÂÂ 17.768040] ================================
[ÂÂ 17.772239] WARNING: inconsistent lock state
[ÂÂ 17.776511] 4.16.0-rc3-next-20180227-00007-g876c53a7493c #453 Not tainted
[ÂÂ 17.783329] --------------------------------
[ÂÂ 17.787580] inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage.
[ÂÂ 17.793607] swapper/0/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
[ÂÂ 17.798751]Â (&syncp->seq#5){?.-.}, at: [<9b22e5f0>]
asix_rx_fixup_internal+0x188/0x288
    u64_stats_update_begin(&stats64->syncp);
ÂÂÂÂÂÂÂÂstats64->rx_packets++;
ÂÂÂÂÂÂÂÂstats64->rx_bytes += skb->len;
ÂÂÂÂÂÂÂÂu64_stats_update_end(&stats64->syncp);
That I considered to be called under lock.
Could you comment this out for testing?