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patrykk / linux-udoo

Udoo Linux Kernel
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fec 2188000.ethernet eth0: MDIO read timeout #23

Closed patrykk closed 8 years ago

patrykk commented 8 years ago

I have had a problem with newer kernels since commit 914eba928de4ef337deecee507b889d27d5ac592 from mainline kernel.

fec 2188000.ethernet eth0: MDIO read timeout fec 2188000.ethernet eth0: MDIO read timeout fec 2188000.ethernet eth0: MDIO read timeout ------------[ cut here ]------------ WARNING: CPU: 1 PID: 0 at net/sched/sch_generic.c:303 dev_watchdog+0x27c/0x288() NETDEV WATCHDOG: eth0 (fec): transmit queue 0 timed out Modules linked in: vivante rt2800usb rt2x00usb rt2800lib rt2x00lib poseidon(C) v ideobuf_vmalloc crc_ccitt snd_soc_vt1613 regmap_acs CPU: 1 PID: 0 Comm: swapper/1 Tainted: G C O 4.2.8 #14 Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) <80016568> from <80012650> <80012650> from <8070f6e4> <8070f6e4> from <80034e8c> <80034e8c> from <80034eec> <80034eec> from <80598a8c> <80598a8c> from <8007b07c> <8007b07c> from <8007b288> <8007b288> from <80038158> <80038158> from <80038510> <80038510> from <800153c4> <800153c4> from <800093c0> <800093c0> from <80013140> Exception stack(0xaf09df60 to 0xaf09dfa8) df60: 00000000 80a98568 00000000 00001d6d af73c580 00000001 36709fcf 0000de90 df80: 292040d7 0000de90 00000004 809fb624 00000000 af09dfa8 8008a794 804a1974 dfa0: 200b0013 ffffffff <80013140> from <804a1974> <804a1974> from <80065510> <80065510> from <1000946c> ---[ end trace 86ce82cb68152c5a ]--- fec 2188000.ethernet eth0: TX ring dump Nr SC addr len SKB 0 0x1c00 0x00000000 95 (null) 1 H 0x1c00 0x00000000 42 (null) 2 0x9c00 0x39e88000 90 9f043900 3 0x9c00 0x39e88800 90 9f043cc0 4 0x9c00 0x39e89000 78 9f043300 5 0x9c00 0x39e89800 384 9f0430c0 6 0x9c00 0x39e8a000 90 9f043000 7 0x9c00 0x39e8a800 70 9f043180 8 0x9c00 0x39e8b000 90 9f043600 9 0x9c00 0x39e8b800 70 9f043840 10 0x9c00 0x39e8c000 384 9f043240 11 0x9c00 0x39e8c800 380 969b03c0 12 0x9c00 0x39e8d000 70 969b0cc0 13 0x9c00 0x39e8d800 380 969b0780 14 0x9c00 0x39e8e000 70 969b0300 15 0x9c00 0x39e8e800 380 969b0d80 16 0x9c00 0x39e8f000 380 969b09c0

We have to use the IS_ERR_VALUE() macro for checking the return value from pmruntime* functions.

patrykk commented 6 years ago

please set sysctl value vm.min_free_kbytes to 32768 and additional commit I'll push soon.