#2237: pcf50633 INT1 and INT3 flood logs with gadgetfs keyboard
-----------------------------+----------------------------------------------
Reporter: lindi | Owner: openmoko-kernel
Type: defect | Status: new
Priority: normal | Milestone:
Component: System Software | Version: unspecified
Severity: normal | Keywords:
Haspatch: 0 | Blockedby:
Estimated: | Patchreview:
Blocking: | Reproducible:
-----------------------------+----------------------------------------------
Steps to reproduce:
1) connect freerunner to a PC and setup ssh access over wlan since g_ether
can not be used during test
2) tar zxf testcase1.tar.gz
3) cd testcase1
4) make
5) sudo bash setup.sh
6) sudo ./usb
Expected results:
6) freerunner shows up as a new usb keyboard on the PC side
Actual results:
6) freerunner shows up as a new usb keyboard on the PC side but on the
freerunner side it starts to flood logs with about 8 lines/second:
{{{
Feb 21 19:02:32 ginger user.info kernel: [ 288.060000] pcf50633 0-0073:
INT1=0x00 INT2=0x00 INT3=0x20 INT4=0x00 INT5=0x00
Feb 21 19:02:32 ginger user.info kernel: [ 288.135000] pcf50633 0-0073:
INT1=0x00 INT2=0x00 INT3=0x00 INT4=0x00 INT5=0x00
Feb 21 19:02:32 ginger user.info kernel: [ 288.155000] pcf50633 0-0073:
INT1=0x00 INT2=0x00 INT3=0x00 INT4=0x00 INT5=0x00
Feb 21 19:02:33 ginger user.info kernel: [ 288.775000] pcf50633 0-0073:
INT1=0x80 INT2=0x00 INT3=0x10 INT4=0x00 INT5=0x00
Feb 21 19:02:33 ginger user.info kernel: [ 288.840000] pcf50633 0-0073:
INT1=0x00 INT2=0x00 INT3=0x00 INT4=0x00 INT5=0x00
Feb 21 19:02:33 ginger user.info kernel: [ 288.860000] pcf50633 0-0073:
INT1=0x00 INT2=0x00 INT3=0x00 INT4=0x00 INT5=0x00
Feb 21 19:02:33 ginger user.info kernel: [ 288.990000] pcf50633 0-0073:
INT1=0x00 INT2=0x00 INT3=0x20 INT4=0x00 INT5=0x00
Feb 21 19:02:33 ginger user.info kernel: [ 289.060000] pcf50633 0-0073:
INT1=0x00 INT2=0x00 INT3=0x00 INT4=0x00 INT5=0x00
Feb 21 19:02:33 ginger user.info kernel: [ 289.080000] pcf50633 0-0073:
INT1=0x00 INT2=0x00 INT3=0x00 INT4=0x00 INT5=0x00
Feb 21 19:02:34 ginger user.info kernel: [ 289.800000] pcf50633 0-0073:
INT1=0x80 INT2=0x00 INT3=0x10 INT4=0x00 INT5=0x00
Feb 21 19:02:34 ginger user.info kernel: [ 289.865000] pcf50633 0-0073:
INT1=0x00 INT2=0x00 INT3=0x00 INT4=0x00 INT5=0x00
Feb 21 19:02:34 ginger user.info kernel: [ 289.885000] pcf50633 0-0073:
INT1=0x00 INT2=0x00 INT3=0x00 INT4=0x00 INT5=0x00
Feb 21 19:02:34 ginger user.info kernel: [ 290.105000] pcf50633 0-0073:
INT1=0x00 INT2=0x00 INT3=0x20 INT4=0x00 INT5=0x00
Feb 21 19:02:34 ginger user.info kernel: [ 290.175000] pcf50633 0-0073:
INT1=0x00 INT2=0x00 INT3=0x00 INT4=0x00 INT5=0x00
}}}
More info:
1) the keyboard gadget does not yet work reliably but that is not what
this bug report is about :-)
2) I am using andy-tracking b8b36e5ec3db71d5
3) udevd seems to consume 5% cpu time constantly. strace shows
{{{
--- SIGCHLD (Child exited) @ 0 (0) ---
write(7, "\0"..., 1) = 1
sigreturn() = ? (mask now [HUP QUIT ABRT BUS
USR1 SEGV PIPE ALRM TERM CHLD CONT STOP TSTP TTOU VTALRM PROF PWR SYS])
gettimeofday({1235235981, 461967}, NULL) = 0
select(7, [3 4 5 6], NULL, NULL, NULL) = 2 (in [5 6])
recv(5, "change@/class/power_supply/adapte"..., 2560, 0) = 296
gettimeofday({1235235981, 479707}, NULL) = 0
unlink("/dev/.udev/failed/\\x2fclass\\x2fpower_supply\\x2fadapter") = -1
ENOENT (No such file or directory)
rmdir("/dev/.udev/failed") = -1 ENOTEMPTY (Directory not
empty)
stat64("/dev/.udev/queue", {st_mode=S_IFDIR|0755, st_size=60, ...}) = 0
symlink("/class/power_supply/adapter", "/dev/.udev/queue/2037") = 0
open("/dev/.udev/uevent_seqnum", O_WRONLY|O_CREAT|O_TRUNC|O_LARGEFILE,
0644) = 8
write(8, "2037\n"..., 5) = 5
close(8) = 0
read(6, "\0"..., 256) = 1
wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG, NULL) = 3020
gettimeofday({1235235981, 549209}, NULL) = 0
unlink("/dev/.udev/failed/\\x2fclass\\x2fpower_supply\\x2fusb") = -1
ENOENT (No such file or directory)
rmdir("/dev/.udev/failed") = -1 ENOTEMPTY (Directory not
empty)
unlink("/dev/.udev/queue/2036") = 0
rmdir("/dev/.udev/queue") = -1 ENOTEMPTY (Directory not
empty)
wait4(-1, 0x3ea4cf8, WNOHANG, NULL) = -1 ECHILD (No child processes)
open("/proc/stat", O_RDONLY|O_LARGEFILE) = 8
fstat64(8, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x40020000
read(8, "cpu 3979 0 10751 65310 1394 0 29"..., 1024) = 386
close(8) = 0
munmap(0x40020000, 4096) = 0
}}}
--
Ticket URL: <https://docs.openmoko.org/trac/ticket/2237>
docs.openmoko.org <http://docs.openmoko.org/trac/>
openmoko trac
