Messages in this thread | | | Date | Sun, 18 Dec 2016 19:30:10 +0100 | From | Pavel Machek <> | Subject | Re: [PATCH 1/2] net: ethernet: sxgbe: remove private tx queue lock |
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Hi!
> > - e1efa87241272104d6a12c8b9fcdc4f62634d447 > > Yep, a sync of the dma descriptors before the hardware gets ownership of the tx tail > idx is missing in the stmmac, too.
I can reproduce failure with 4.4 fairly easily. I tried with dma_ variant of barriers, and it failed, too
[ 1018.410012] stmmac: early irq [ 1023.939702] fpga_cmd_read:wait_event timed out! [ 1033.128692] ------------[ cut here ]------------ [ 1033.133329] WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:303 dev_watchdog+0x264/0x284() [ 1033.141748] NETDEV WATCHDOG: eth0 (socfpga-dwmac): transmit queue 0 timed out [ 1033.148861] Modules linked in:
Pavel
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