[Bug 1179] Mobile phone hands after 'shutdown now' from the command line

[bugzilla-daemon at bugzilla.openmoko.org]

http://bugzilla.openmoko.org/cgi-bin/bugzilla/show_bug.cgi?id=1179





------- Additional Comments From balrogg at gmail.com  2008-01-20 16:35 -------
I can see this too, here's the stack trace that gets printed on the UART1 in qemu:

gta01-pm-gsm gta01-pm-gsm.0: powered down GSM, thus enabling serial console
pcf50606_rtc_set_time: RTC_TIME: 20.1.108 16:22:49
pcf50606_rtc_set_time: PCF_TIME: 20.01.08 16:22:49
Unable to handle kernel paging request at virtual address 49000028
pgd = c3bc8000
[49000028] *pgd=00000000
Internal error: Oops: 15 [#4] PREEMPT
Modules linked in: snd_soc_s3c24xx_i2s rfcomm ohci_hcd hidp l2cap hci_usb bluetooth
CPU: 0    Not tainted  (2.6.22.5-moko11 #1)
PC is at usb_hcd_platform_shutdown+0x18/0x30
LR is at platform_drv_shutdown+0x20/0x24
pc : [<c0197830>]    lr : [<c0182578>]    psr: 40000013
sp : c560de28  ip : c560de38  fp : c560de34
r10: 00000000  r9 : c560c000  r8 : c00270c8
r7 : fee1dead  r6 : 0005f550  r5 : c02f7618  r4 : c02f9498
r3 : 49000000  r2 : c560c000  r1 : 00000001  r0 : c7ec8400
Flags: nZcv  IRQs on  FIQs on  Mode SVC_32  Segment user
Control: c0007177  Table: 33bc8000  DAC: 00000015
Process halt (pid: 1822, stack limit = 0xc560c260)
Stack: (0xc560de28 to 0xc560e000)
de20:                   c560de44 c560de38 c0182578 c0197824 c560de5c c560de48 
de40: c01846a0 c0182564 00000003 4321fedc c560de74 c560de60 c0050270 c0184608 
de60: c560de84 4321fedc c560de84 c560de78 c00502c8 c0050244 c560dfa4 c560de88 
de80: c0051b24 c00502c0 c004fa14 c004f990 00000000 c04aeac0 c560dee4 c560dea8 
dea0: c025f574 c003c894 00000007 00000000 c04aebd4 c560c000 00000000 c560c000 
dec0: c560df00 c560c000 00000014 c00270c8 c560c000 00000000 c560defc c560dee8 
dee0: c025f60c c003c894 c560c000 00000000 c560dfa4 c560df00 c004ec50 c025f5d0 
df00: 00000014 00000000 00000000 0000071e 00000000 00000103 00000001 00000000 
df20: c560c000 c04a9ca8 c04a9ca0 00024800 60000013 c0461260 c560df64 c560df48 
df40: c0088de0 c014b8f0 00024800 0008a628 fffffffe fffffffe c560df94 c560df68 
df60: c008b2e4 c0088d64 00000001 00000001 00000001 0000002f 00000000 00000000 
df80: 00000005 00000000 00000000 00000000 00000000 00000058 00000000 c560dfa8 
dfa0: c0026f20 c0051a20 00000000 00000000 fee1dead 28121969 4321fedc 0005f550 
dfc0: 00000000 00000000 00000000 00000058 00000001 00000001 00000001 fffffff6 
dfe0: 00011d38 bec1acc8 000091b8 400c6c88 20000010 fee1dead 00000000 00000000 
Backtrace: 
[<c0197818>] (usb_hcd_platform_shutdown+0x0/0x30) from [<c0182578>]
(platform_drv_shutdown+0x20/0x24)
[<c0182558>] (platform_drv_shutdown+0x0/0x24) from [<c01846a0>]
(device_shutdown+0xa4/0xd0)
[<c01845fc>] (device_shutdown+0x0/0xd0) from [<c0050270>]
(kernel_shutdown_prepare+0x38/0x44)
 r5:4321fedc r4:00000003
[<c0050238>] (kernel_shutdown_prepare+0x0/0x44) from [<c00502c8>]
(kernel_power_off+0x14/0x28)
 r4:4321fedc
[<c00502b4>] (kernel_power_off+0x0/0x28) from [<c0051b24>] (sys_reboot+0x110/0x214)
[<c0051a14>] (sys_reboot+0x0/0x214) from [<c0026f20>] (ret_fast_syscall+0x0/0x2c)
 r7:00000058 r6:00000000 r5:00000000 r4:00000000
Code: e24cb004 e59030f8 e1a00003 e59330b0 (e5933028) 

Unfortunately I won't have time to debug this this week, and perhaps effort
should be concentrated on fixing 2.6.24 instead.



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