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Type:
Bug
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Resolution: Unresolved
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Priority:
Medium
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Linux Core SDK
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LCPD-44703
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10.01
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12.01.00
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am62xx_sk-fs
A byte would be lost when using serialcheck program testing multiple UART external loopback simultaneously, along with a network interface link up and down.
For example, mcu_uart0, main_uart1, and main_uart5 on SK-AM62B-P1 are enabled and aliased to ttyS1, ttyS3, and ttyS7 respectively. Using the following command sequence to start UART transfers simultaneously.
gpioset 2 21=0 # route mcu_uart0 to header J9
serialcheck -b 460800 -d /dev/ttyS1 -f 15MB.data -l 300001 -m r &
serialcheck -b 460800 -d /dev/ttyS1 -f 15MB.data -l 300001 -m t &
serialcheck -b 460800 -d /dev/ttyS3 -f 15MB.data -l 300003 -m r &
serialcheck -b 460800 -d /dev/ttyS3 -f 15MB.data -l 300003 -m t &
serialcheck -b 460800 -d /dev/ttyS7 -f 15MB.data -l 300007 -m r &
serialcheck -b 460800 -d /dev/ttyS7 -f 15MB.data -l 300007 -m t &while true; do ifconfig eth1 up && sleep 1 && ifconfig eth1 down && sleep 1; done
After a while, the following error happens, byte 0x9e80d is lost in RX.
[ 699.845546] am65-cpsw-nuss 8000000.ethernet eth1: configuring for phy/rgmii-rxid link mode
Needed 239443 reads 0 writes Oh oh, inconsistency at pos 15329293 (0xe9e80d).
Original sample:
00e9e7d0: e5 39 1e 2f 5e d0 5c b3 57 f1 58 79 8c d6 e2 7d .9./^.\.W.Xy...}
00e9e7e0: b9 0a c2 cb d4 9e dc cd 52 47 90 81 b3 f2 41 92 ........RG....A.
00e9e7f0: ad 30 64 1e 8c 5f 92 2d 33 64 e7 29 be 3a 92 2d .0d.._.-3d.).:.-
00e9e800: 11 59 09 8d 2d c8 31 0e 07 eb f6 e4 02 cc 9b 3b .Y..-.1........;
00e9e810: 9c f5 59 c3 d9 e3 a4 3b 48 ba 7e c9 63 3f e5 f1 ..Y....;H.~.c?..
00e9e820: 53 82 0f a8 bd b9 63 17 0a 79 fa 0d e1 03 a4 7b S.....c..y.....{
Received sample:
00e9e7d0: e5 39 1e 2f 5e d0 5c b3 57 f1 58 79 8c d6 e2 7d .9./^.\.W.Xy...}
00e9e7e0: b9 0a c2 cb d4 9e dc cd 52 47 90 81 b3 f2 41 92 ........RG....A.
00e9e7f0: ad 30 64 1e 8c 5f 92 2d 33 64 e7 29 be 3a 92 2d .0d.._.-3d.).:.-
00e9e800: 11 59 09 8d 2d c8 31 0e 07 eb f6 e4 02 9b 3b 9c .Y..-.1.......;.
00e9e810: f5 59 c3 d9 e3 a4 3b 48 ba 7e c9 63 3f e5 f1 53 .Y....;H.~.c?..S
00e9e820: 82 0f a8 bd b9 63 17 0a 79 fa 0d e1 03 a4 7b 2d .....c..y.....{-
loops 2 / 300007
cts: 0 dsr: 0 rng: 0 dcd: 0 rx: 30668991 tx: 30668992 frame 0 ovr 0 par: 0 brk: 0 buf_ovrr: 0
[ 701.895331] am65-cpsw-nuss 8000000.ethernet eth1: PHY [8000f00.mdio:01] driver [TI DP83867] (irq=POLL)
