Openmoko Bug #2180: stable-tracking: 'rxserr' UART messages

[Openmoko Public Trac]

#2180: stable-tracking: 'rxserr' UART messages
-----------------------------+----------------------------------------------
 Reporter:  laforge          |          Owner:  openmoko-kernel         
     Type:  defect           |         Status:  new                     
 Priority:  high             |      Milestone:  FSO                     
Component:  System Software  |        Version:                          
 Severity:  major            |       Keywords:  gps s3x24xx_serial rxerr
 Haspatch:  0                |      Blockedby:                          
Estimated:                   |    Patchreview:                          
 Blocking:                   |   Reproducible:                          
-----------------------------+----------------------------------------------

Comment(by lindi):

 I think I just hit this bug twice on my gta02V5 with andy-tracking
 a3587e4ed77974ad:

 I was running gpsd on FR and streaming gps data over usb network to
 laptop. GSM, bluetooth, wifi and backlight were all off. Twice during the
 openstreetmap mapping trip the phone just froze and watchdog kicked in
 after a while. ramconsole logs ended with

 <7>[45124.025000] rxerr: port=1 ch=0xb1, rxs=0x00000007
 <7>[45124.030000] rxerr: port=1 ch=0x2c, rxs=0x00000007
 <7>[45124.035000] rxerr: port=1 ch=0x4e, rxs=0x00000004
 <7>[45124.040000] rxerr: port=1 ch=0x2e, rxs=0x00000004
 <7>[45124.045000] rxerr: port=1 ch=0x24, rxs=0x00000004
 <7>[45124.050000] rxerr: port=1 ch=0x14, rxs=0x00000006
 <7>[45124.055000] rxerr: port=1 ch=0x25, rxs=0x00000006
 <7>[45124.060000] rxerr: port=1 ch=0x35, rxs=0x00000004
 <7>[45124.065000] rxerr: port=1 ch=0x43, rxs=0x00000006
 <7>[45124.070000] rxerr: port=1 ch=0x89, rxs=0x00000006
 <7>[45124.075000] rxerr: port=1 ch=0xb1, rxs=0x00000006
 <7>[45124.080000] rxerr: port=1 ch=0x2c, rxs=0x00000006
 <7>[45124.085000] rxerr: port=1 ch=0x89, rxs=0x00000006
 <7>[45124.090000] rxerr: port=1 ch=0x62, rxs=0x00000006
 <7>[45124.095000] rxerr: port=1 ch=0x2c, rxs=0x00000006
 <7>[45124.100000] rxerr: port=1 ch=0x89, rxs=0x00000006
 <7>[45124.105000] rxerr: port=1 ch=0x62, rxs=0x00000006
 <7>[45124.110000] rxerr: port=1 ch=0x2c, rxs=0x00000006
 <7>[45124.115000] rxerr: port=1 ch=0x4a, rxs=0x00000006
 <7>[45124.120000] rxerr: port=1 ch=0xaa, rxs=0x00000004
 <7>[45124.125000] rxerr: port=1 ch=0x33, rxs=0x00000004
 <7>[45124.130000] rxerr: port=1 ch=0xd2, rxs=0x00000004
 <7>[45124.135000] rxerr: port=1 ch=0x41, rxs=0x00000005
 <7>[45124.140000] rxerr: port=1 ch=0x56, rxs=0x00000005
 <7>[45124.145000] rxerr: port=1 ch=0xd5, rxs=0x00000007
 <7>[45124.150000] rxerr: port=1 ch=0xb1, rxs=0x00000007
 <7>[45124.155000] rxerr: port=1 ch=0x2c, rxs=0x00000007
 <7>[45124.160000] rxerr: port=1 ch=0x39, rxs=0x00000004


 and

 <7>[21474658.310000] rxerr: port=1 ch=0x50, rxs=0x00000004
 <7>[21474658.310000] rxerr: port=1 ch=0x54, rxs=0x00000004
 <7>[21474658.315000] rxerr: port=1 ch=0xb1, rxs=0x00000006
 <7>[21474658.320000] rxerr: port=1 ch=0x2c, rxs=0x00000006
 <7>[21474658.325000] rxerr: port=1 ch=0x89, rxs=0x00000006
 <7>[21474658.330000] rxerr: port=1 ch=0x62, rxs=0x00000006
 <7>[21474658.335000] rxerr: port=1 ch=0x30, rxs=0x00000004
 <7>[21474658.340000] rxerr: port=1 ch=0x62, rxs=0x00000006
 <7>[21474658.345000] rxerr: port=1 ch=0x30, rxs=0x00000004
 <7>[21474658.350000] rxerr: port=1 ch=0x52, rxs=0x00000006
 <7>[21474658.355000] rxerr: port=1 ch=0x34, rxs=0x00000006
 <7>[21474658.360000] rxerr: port=1 ch=0x6a, rxs=0x00000006

 I have not tried any of the patches yet since I need to figure out how to
 make this bug occur again first.

-- 
Ticket URL: <https://docs.openmoko.org/trac/ticket/2180#comment:32>
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