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Today's Topics:
1. Re: Openmoko Bug #2310: charging N900 with gta02 causes the
gta02 to overheat (Openmoko Public Trac)
2. Re: Openmoko Bug #2279: toggling backlight very fast blocks
reads of /proc/apm (Openmoko Public Trac)
3. Re: Openmoko Bug #2279: toggling backlight very fast blocks
reads of /proc/apm (Openmoko Public Trac)
4. Re: Openmoko Bug #2278: kernel: g_file_storage fails with usb
1-1: failed to restore interface 0 altsetting 0 (error=-110)
(Openmoko Public Trac)
--- Begin Message ---
#2310: charging N900 with gta02 causes the gta02 to overheat
-----------------------------+----------------------------------------------
Reporter: lindi | Owner: joerg
Type: defect | Status: assigned
Priority: normal | Milestone:
Component: System Software | Version:
Severity: major | Keywords: usb hostmode U4904 L4901 hw
heat USB_FLT
Haspatch: 0 | Blockedby:
Estimated: | Patchreview:
Blocking: | Reproducible:
-----------------------------+----------------------------------------------
Comment(by joerg):
[2009-09-13 17:58:40] <timeless_mbp> DocScrutinizer: do note that lindi
was warned in advance that the device was not conforming to standards
[2009-09-13 17:58:40] <timeless_mbp> it was a plug-in to my device at your
own risk
Setting this one on "need info" until effect can be reproduced with other
means than N900. Those guys are "not asking for any help" and don't want
to cooperate to find the true nature of this issue.
/j
--
Ticket URL: <https://docs.openmoko.org/trac/ticket/2310#comment:8>
docs.openmoko.org <http://docs.openmoko.org/trac/>
openmoko trac
--- End Message ---
--- Begin Message ---
#2279: toggling backlight very fast blocks reads of /proc/apm
-----------------------------+----------------------------------------------
Reporter: lindi | Owner: openmoko-kernel
Type: defect | Status: new
Priority: normal | Milestone:
Component: System Software | Version: unspecified
Severity: minor | Keywords: kernel backlight DoS
Haspatch: 0 | Blockedby:
Estimated: | Patchreview:
Blocking: | Reproducible: always
-----------------------------+----------------------------------------------
Comment(by lindi):
Well, my window manager (icewm) supports /proc/apm and I got very upset
when I suddenly noticed that it got stuck when I started the blinking
program :-)
Anyways, I tried reading other files in /proc and noticed that also
reading from /proc/driver/rtc seems to block forever. This probably
suggests that the problem is not APM related?
--
Ticket URL: <https://docs.openmoko.org/trac/ticket/2279#comment:2>
docs.openmoko.org <http://docs.openmoko.org/trac/>
openmoko trac
--- End Message ---
--- Begin Message ---
#2279: toggling backlight very fast blocks reads of /proc/apm
-----------------------------+----------------------------------------------
Reporter: lindi | Owner: openmoko-kernel
Type: defect | Status: new
Priority: normal | Milestone:
Component: System Software | Version: unspecified
Severity: minor | Keywords: kernel backlight DoS
Haspatch: 0 | Blockedby:
Estimated: | Patchreview:
Blocking: | Reproducible: always
-----------------------------+----------------------------------------------
Comment(by lindi):
I wrote a small program that tries to read every file in /sys:
{{{
#!/bin/sh
find /sys -type f | while read f; do
echo "==== $f"
md5sum $f &
pid="$!"
for i in 0 1 2 3 4 5 6 7 8 9; do
if ! [ -d "/proc/$pid" ]; then
break
fi
sleep 0.1
done
if [ -d "/proc/$pid" ]; then
echo stuck on $f
sleep 4
fi
done
}}}
It reported that the following files can not be read when the backlight
blinking program is running:
/sys/devices/platform/s3c24xx_pwm.0/hdq.0/hdq/dump
/sys/class/regulator/regulator.0/microvolts
/sys/class/regulator/regulator.0/state
/sys/class/regulator/regulator.1/microvolts
/sys/class/regulator/regulator.1/state
/sys/class/regulator/regulator.2/microvolts
/sys/class/regulator/regulator.2/state
/sys/class/regulator/regulator.3/microvolts
/sys/class/regulator/regulator.3/state
/sys/class/regulator/regulator.4/microvolts
/sys/class/regulator/regulator.4/state
/sys/class/regulator/regulator.5/microvolts
/sys/class/regulator/regulator.5/state
/sys/class/regulator/regulator.6/microvolts
/sys/class/regulator/regulator.6/state
/sys/class/regulator/regulator.7/microvolts
/sys/class/regulator/regulator.7/state
/sys/class/regulator/regulator.8/microvolts
/sys/class/regulator/regulator.8/state
/sys/class/regulator/regulator.9/microvolts
/sys/class/regulator/regulator.9/state
/sys/class/regulator/regulator.10/microvolts
/sys/class/regulator/regulator.10/state
/sys/class/backlight/gta02-bl/actual_brightness
/sys/class/i2c-adapter/i2c-0/0-0073/pcf50633-mbc/chgmode
/sys/class/i2c-adapter/i2c-0/0-0073/pcf50633-mbc/usb_curlim
/sys/class/i2c-adapter/i2c-0/0-0073/pcf50633-mbc/chg_curlim
/sys/class/i2c-adapter/i2c-0/0-0073/pcf50633-regltr.6/neo1973-pm-
bt.0/microamps_requested_BT_3V2
/sys/class/i2c-adapter/i2c-0/0-0073/pcf50633-regltr.7/neo1973-pm-
gps.0/microamps_requested_RF_3V
/sys/class/i2c-adapter/i2c-0/0-0073/pcf50633-regltr.7/neo1973-pm-
gps.0/power_on
/sys/class/i2c-adapter/i2c-0/0-0073/pcf50633-regltr.9/glamo3362.0/glamo-
mci.0/microamps_requested_SD_3V3
After the last file the phone rebooted with watchdog and ramconsole showed
the following kernel
error:
{{{
Unable to handle kernel NULL pointer dereference at virtual address
00000000
pgd = c7b18000
[00000000] *pgd=37bb1031, *pte=00000000, *ppte=00000000
Internal error: Oops: 17 [#1] PREEMPT
Modules linked in: fuse snd_soc_neo1973_gta02_wm8753 snd_soc_s3c24xx_i2s
snd_soc_s3c24xx g_ether s3c2410_wdt ar6000 snd_soc_wm8753 s3cmci
snd_soc_core snd_pcm snd_timer snd_page_alloc snd
CPU: 0 Not tainted (2.6.29-GTA02_lindi-andy-tracking-mokodev #17)
PC is at s3c24xx_serial_show_clksrc+0x1c/0x30
LR is at dev_attr_show+0x2c/0x4c
pc : [<c019f85c>] lr : [<c01a0408>] psr: a0000013
sp : c7b49ee0 ip : c7b49ef0 fp : c7b49eec
r10: 00000000 r9 : 00001000 r8 : c7b49f78
r7 : c03a2830 r6 : c7990ab4 r5 : c03a2680 r4 : c038bbb8
r3 : 00000000 r2 : c7bb6000 r1 : 00001000 r0 : c7bb6000
Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
Control: c000717f Table: 37b18000 DAC: 00000015
Process md5sum (pid: 1750, stack limit = 0xc7b48268)
Stack: (0xc7b49ee0 to 0xc7b4a000)
9ee0: c7b49f04 c7b49ef0 c01a0408 c019f850 c038bbb8 c7bb7360 c7b49f4c
c7b49f08
9f00: c00f1e30 c01a03ec c02ad038 c004b2a8 c7b568f4 c7b568f4 be8605dc
c7bb7378
9f20: c01606d8 c7b302c0 be8605dc c7b49f78 00001000 c002f048 c7b48000
00000000
9f40: c7b49f74 c7b49f50 c00ad7ec c00f1d7c c7b49f74 c7b49f60 00000000
00000000
9f60: c7b302c0 00000003 c7b49fa4 c7b49f78 c00ad944 c00ad744 00000000
00000000
9f80: ffffffff 00000000 00017858 00000000 00017858 00001000 00000000
c7b49fa8
9fa0: c002eea0 c00ad908 00000000 00017858 00000003 be8605dc 00001000
00000000
9fc0: 00000000 00017858 00001000 00000003 00001000 be8618f4 00000002
00000101
9fe0: be8605dc be8605a0 400ad154 4010173c 60000010 00000003 00000000
00000000
Backtrace:
[<c019f840>] (s3c24xx_serial_show_clksrc+0x0/0x30) from [<c01a0408>]
(dev_attr_show+0x2c/0x4c)
[<c01a03dc>] (dev_attr_show+0x0/0x4c) from [<c00f1e30>]
(sysfs_read_file+0xc4/0x1c0)
r5:c7bb7360 r4:c038bbb8
[<c00f1d6c>] (sysfs_read_file+0x0/0x1c0) from [<c00ad7ec>]
(vfs_read+0xb8/0x148)
[<c00ad734>] (vfs_read+0x0/0x148) from [<c00ad944>] (sys_read+0x4c/0x7c)
r7:00000003 r6:c7b302c0 r5:00000000 r4:00000000
[<c00ad8f8>] (sys_read+0x0/0x7c) from [<c002eea0>]
(ret_fast_syscall+0x0/0x2c)
r6:00001000 r5:00017858 r4:00000000
Code: e59030e4 e3a01a01 e513300c e1a00002 (e5933000)
---[ end trace 247919efb6119d22 ]---
s3c2410-wdt s3c2410-wdt: Unexpected close, not stopping watchdog
Flash device refused suspend due to active operation (state 0)
Restarting system.
arch_reset: attempting watchdog reset
}}}
--
Ticket URL: <https://docs.openmoko.org/trac/ticket/2279#comment:3>
docs.openmoko.org <http://docs.openmoko.org/trac/>
openmoko trac
--- End Message ---
--- Begin Message ---
#2278: kernel: g_file_storage fails with usb 1-1: failed to restore interface 0
altsetting 0 (error=-110)
-----------------------------+----------------------------------------------
Reporter: lindi | Owner: openmoko-kernel
Type: defect | Status: new
Priority: normal | Milestone:
Component: System Software | Version:
Severity: normal | Keywords: kernel usb gadget
Haspatch: 0 | Blockedby:
Estimated: | Patchreview:
Blocking: | Reproducible: always
-----------------------------+----------------------------------------------
Changes (by PaulFertser):
* cc: arnaud.pat...@… (added)
Comment:
Arnaud Patard said he's aware of the problems which are most probably
related to the s3c core reporting interrupts with no interrupt flags set
which is treated as error.
The workaround is in the works.
--
Ticket URL: <https://docs.openmoko.org/trac/ticket/2278#comment:4>
docs.openmoko.org <http://docs.openmoko.org/trac/>
openmoko trac
--- End Message ---
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