#12335 NORM 4-softw: olpc-ec: transmit fifi not empty
Zarro Boogs per Child
bugtracker at laptop.org
Tue Nov 20 14:49:55 EST 2012
#12335: olpc-ec: transmit fifi not empty
--------------------+-------------------------------------------------------
Reporter: pgf | Owner:
Type: defect | Status: new
Priority: normal | Milestone: 4-software
Component: kernel | Version: Development build as of this date
Keywords: | Next_action: diagnose
Verified: 0 | Deployment_affected:
Blockedby: | Blocking:
--------------------+-------------------------------------------------------
using kernel 4ec9bcf, suspend the system, ensure that the EC and
keyboard have wakeups enabled with this script:
{{{
for x in /sys/devices/0.ols/power/wakeup \
/sys/devices/d4208000.usb/usb1/1-1/power/wakeup \
/sys/devices/d4208000.usb/usb1/power/wakeup \
/sys/devices/pxa2xx-uart.1/tty/ttyS2/power/wakeup \
/sys/devices/0.battery/power_supply/olpc-battery/power/wakeup
do
echo disabled > $x
done
for x in /sys/devices/d4037000.ec-spi/power/wakeup \
/sys/devices/d4290000.ap-sp/power/wakeup \
/sys/devices/0.switches/power/wakeup \
/sys/devices/d4010000.wakeup-rtc/power/wakeup \
/sys/devices/0.battery/power_supply/olpc-ac/power/wakeup
do
echo enabled > $x
done
}}}
wake with a keypress followed by the power button. kernel WARNING
tracebacks ensue.
i suppose it's possible that once we get the system waking the
whole way with just the keypress that this symptom will go away.
{{{
[ 52.238319] mmp3_pm_valid
[ 52.240931] PM: Syncing filesystems ... done.
[ 52.249520] Freezing user space processes ... (elapsed 0.02 seconds)
done.
[ 52.278094] Freezing remaining freezable tasks ... (elapsed 0.01
seconds) done.
[ 52.295446] Suspending console(s) (use no_console_suspend to debug)
[ 61.350667] Modules linked in: fuse xt_tcpudp iptable_filter ip_tables
x_tables mousedev uinput libertas_sdio libertas joydev fb_sys_fops
sysimgblt sysfillrect syscopyarea sisusbvga psmouse mmp_camera
videobuf2_core videobuf2_dma_sg videobuf2_vmalloc videobuf2_memops zforce
ov7670 [last unloaded: udlfb]
[ 52.424438] dcon_source_switch to DCON
[ 52.456626] olpc-dcon: The DCON has control
[ 52.456771] mmp3_usb_phy_deinit_internal: Deinit usb phy!!!
[ 52.496548] libertas_sdio mmc0:0001:1: mmc0:0001:1: suspend: PM flags =
0x0
[ 52.496548] libertas_sdio mmc0:0001:1: Suspend without wake params --
powering down card
[ 52.505796] mmc0: card 0001 removed
[ 52.507035] PM: suspend of devices complete after 202.462 msecs
[ 52.507239] PM: late suspend of devices complete after 0.198 msecs
[ 52.507538] PM: noirq suspend of devices complete after 0.001 msecs
[ 52.507654] mmp3_pm_enter_d2
[ 52.507677] mmp3_pm_enter_d2 1
[ 52.507689] mmp3_pm_enter_d2 2
[ 52.507695] mmp3_pm_enter_d2 3
[ 52.507695] mmp3_pm_enter_d2 5
[ 52.507700] before suspend
[ 52.509426] mmp3_pm_enter_d2 10
[ 61.083244] after resume
[ 61.084070] PM: noirq resume of devices complete after 0.771 msecs
[ 61.084168] olpc-ec-1.75: received interrupt without data waiting
[ 61.084435] PM: early resume of devices complete after 0.083 msecs
[ 61.350628] olpc-ec-1.75: transmit FIFO not empty
[ 61.350637] ------------[ cut here ]------------
[ 61.350667] WARNING: at drivers/misc/olpc-ec-1-75.c:218
olpc_ec_1_75_strobe_ack+0x40/0x6c()
[ 61.350670] [<c00152ec>] (unwind_backtrace+0x0/0x128) from [<c0401a24>]
(dump_stack+0x20/0x24)
[ 61.350748] [<c0401a24>] (dump_stack+0x20/0x24) from [<c0020908>]
(warn_slowpath_common+0x5c/0x74)
[ 61.350768] [<c0020908>] (warn_slowpath_common+0x5c/0x74) from
[<c002094c>] (warn_slowpath_null+0x2c/0x34)
[ 61.350792] [<c002094c>] (warn_slowpath_null+0x2c/0x34) from
[<c0232868>] (olpc_ec_1_75_strobe_ack+0x40/0x6c)
[ 61.350805] [<c0232868>] (olpc_ec_1_75_strobe_ack+0x40/0x6c) from
[<c023291c>] (olpc_ec_1_75_send_command+0x88/0x94)
[ 61.350805] [<c023291c>] (olpc_ec_1_75_send_command+0x88/0x94) from
[<c02336f4>] (olpc_ec_1_75_ssp_handler+0x270/0x510)
[ 61.350817] [<c02336f4>] (olpc_ec_1_75_ssp_handler+0x270/0x510) from
[<c0079038>] (handle_irq_event_percpu+0xc4/0x2c8)
[ 61.350839] [<c0079038>] (handle_irq_event_percpu+0xc4/0x2c8) from
[<c00792a4>] (handle_irq_event+0x68/0x84)
[ 61.350853] [<c00792a4>] (handle_irq_event+0x68/0x84) from [<c007bca8>]
(handle_level_irq+0xe4/0x11c)
[ 61.350868] [<c007bca8>] (handle_level_irq+0xe4/0x11c) from
[<c0078830>] (generic_handle_irq+0x30/0x40)
[ 61.350903] [<c0078830>] (generic_handle_irq+0x30/0x40) from
[<c000f91c>] (handle_IRQ+0x70/0x94)
[ 61.350903] [<c000f91c>] (handle_IRQ+0x70/0x94) from [<c0008518>]
(asm_do_IRQ+0x18/0x1c)
[ 61.350915] [<c0008518>] (asm_do_IRQ+0x18/0x1c) from [<c000e4cc>]
(__irq_svc+0x4c/0x94)
[ 61.350926] Exception stack(0xc05dff40 to 0xc05dff88)
[ 61.350932] ff40: 00000000 f0004000 00000001 60400100 c05de000 c05ea684
c061a708 c0ec0540
[ 61.350943] ff60: 00004059 562f5842 00000000 c05dffa4 c05dff60 c05dff88
c001bdb4 c000fc8c
[ 61.350958] ff80: 600f0013 ffffffff
[ 61.350971] [<c000e4cc>] (__irq_svc+0x4c/0x94) from [<c000fc8c>]
(cpu_idle+0x64/0xac)
[ 61.350996] [<c000fc8c>] (cpu_idle+0x64/0xac) from [<c03fc6b0>]
(rest_init+0x78/0x90)
[ 61.351012] [<c03fc6b0>] (rest_init+0x78/0x90) from [<c05a37b8>]
(start_kernel+0x2a0/0x2f0)
[ 61.351012] ---[ end trace 43fc67f7375f07fe ]---
[ 61.352012] olpc-ec-1.75: transmit FIFO not empty
[ 61.352019] ------------[ cut here ]------------
[ 61.352023] WARNING: at drivers/misc/olpc-ec-1-75.c:218
olpc_ec_1_75_strobe_ack+0x40/0x6c()
[ 61.352032] Modules linked in: fuse xt_tcpudp iptable_filter ip_tables
x_tables mousedev uinput libertas_sdio libertas joydev fb_sys_fops
sysimgblt sysfillrect syscopyarea sisusbvga psmouse mmp_camera
videobuf2_core videobuf2_dma_sg videobuf2_vmalloc videobuf2_memops zforce
ov7670 [last unloaded: udlfb]
[ 61.352099] [<c00152ec>] (unwind_backtrace+0x0/0x128) from [<c0401a24>]
(dump_stack+0x20/0x24)
[ 61.352112] [<c0401a24>] (dump_stack+0x20/0x24) from [<c0020908>]
(warn_slowpath_common+0x5c/0x74)
[ 61.352136] [<c0020908>] (warn_slowpath_common+0x5c/0x74) from
[<c002094c>] (warn_slowpath_null+0x2c/0x34)
[ 61.352136] [<c002094c>] (warn_slowpath_null+0x2c/0x34) from
[<c0232868>] (olpc_ec_1_75_strobe_ack+0x40/0x6c)
[ 61.352148] [<c0232868>] (olpc_ec_1_75_strobe_ack+0x40/0x6c) from
[<c023291c>] (olpc_ec_1_75_send_command+0x88/0x94)
[ 61.352171] [<c023291c>] (olpc_ec_1_75_send_command+0x88/0x94) from
[<c0232958>] (olpc_ec_1_75_prime_fifo+0x30/0x3c)
[ 61.352171] [<c0232958>] (olpc_ec_1_75_prime_fifo+0x30/0x3c) from
[<c0233670>] (olpc_ec_1_75_ssp_handler+0x1ec/0x510)
[ 61.352182] [<c0233670>] (olpc_ec_1_75_ssp_handler+0x1ec/0x510) from
[<c0079038>] (handle_irq_event_percpu+0xc4/0x2c8)
[ 61.352195] [<c0079038>] (handle_irq_event_percpu+0xc4/0x2c8) from
[<c00792a4>] (handle_irq_event+0x68/0x84)
[ 61.352208] [<c00792a4>] (handle_irq_event+0x68/0x84) from [<c007bca8>]
(handle_level_irq+0xe4/0x11c)
[ 61.352220] [<c007bca8>] (handle_level_irq+0xe4/0x11c) from
[<c0078830>] (generic_handle_irq+0x30/0x40)
[ 61.352233] [<c0078830>] (generic_handle_irq+0x30/0x40) from
[<c000f91c>] (handle_IRQ+0x70/0x94)
[ 61.352246] [<c000f91c>] (handle_IRQ+0x70/0x94) from [<c0008518>]
(asm_do_IRQ+0x18/0x1c)
[ 61.352257] [<c0008518>] (asm_do_IRQ+0x18/0x1c) from [<c000e4cc>]
(__irq_svc+0x4c/0x94)
[ 61.352267] Exception stack(0xc05dff40 to 0xc05dff88)
[ 61.352272] ff40: 00000000 f0004000 00000001 60400100 c05de000 c05ea684
c061a708 c0ec0540
[ 61.352293] ff60: 00004059 562f5842 00000000 c05dffa4 c05dff60 c05dff88
c001bdb4 c000fc8c
[ 61.352298] ff80: 600f0013 ffffffff
[ 61.352298] [<c000e4cc>] (__irq_svc+0x4c/0x94) from [<c000fc8c>]
(cpu_idle+0x64/0xac)
[ 61.352323] [<c000fc8c>] (cpu_idle+0x64/0xac) from [<c03fc6b0>]
(rest_init+0x78/0x90)
[ 61.352323] [<c03fc6b0>] (rest_init+0x78/0x90) from [<c05a37b8>]
(start_kernel+0x2a0/0x2f0)
[ 61.352339] ---[ end trace 43fc67f7375f07ff ]---
[ 61.358895] olpc-ec-1.75: transmit FIFO not empty
[ 61.358895] ------------[ cut here ]------------
[ 61.358900] WARNING: at drivers/misc/olpc-ec-1-75.c:218
olpc_ec_1_75_strobe_ack+0x40/0x6c()
[ 61.358908] Modules linked in: fuse xt_tcpudp iptable_filter ip_tables
x_tables mousedev uinput libertas_sdio libertas joydev fb_sys_fops
sysimgblt sysfillrect syscopyarea sisusbvga psmouse mmp_camera
videobuf2_core videobuf2_dma_sg videobuf2_vmalloc videobuf2_memops zforce
ov7670 [last unloaded: udlfb]
[ 61.358987] [<c00152ec>] (unwind_backtrace+0x0/0x128) from [<c0401a24>]
(dump_stack+0x20/0x24)
[ 61.358987] [<c0401a24>] (dump_stack+0x20/0x24) from [<c0020908>]
(warn_slowpath_common+0x5c/0x74)
[ 61.358999] [<c0020908>] (warn_slowpath_common+0x5c/0x74) from
[<c002094c>] (warn_slowpath_null+0x2c/0x34)
[ 61.359022] [<c002094c>] (warn_slowpath_null+0x2c/0x34) from
[<c0232868>] (olpc_ec_1_75_strobe_ack+0x40/0x6c)
[ 61.359022] [<c0232868>] (olpc_ec_1_75_strobe_ack+0x40/0x6c) from
[<c023291c>] (olpc_ec_1_75_send_command+0x88/0x94)
[ 61.359034] [<c023291c>] (olpc_ec_1_75_send_command+0x88/0x94) from
[<c0232958>] (olpc_ec_1_75_prime_fifo+0x30/0x3c)
[ 61.359045] [<c0232958>] (olpc_ec_1_75_prime_fifo+0x30/0x3c) from
[<c0233950>] (olpc_ec_1_75_ssp_handler+0x4cc/0x510)
[ 61.359069] [<c0233950>] (olpc_ec_1_75_ssp_handler+0x4cc/0x510) from
[<c0079038>] (handle_irq_event_percpu+0xc4/0x2c8)
[ 61.359069] [<c0079038>] (handle_irq_event_percpu+0xc4/0x2c8) from
[<c00792a4>] (handle_irq_event+0x68/0x84)
[ 61.359094] [<c00792a4>] (handle_irq_event+0x68/0x84) from [<c007bca8>]
(handle_level_irq+0xe4/0x11c)
[ 61.359107] [<c007bca8>] (handle_level_irq+0xe4/0x11c) from
[<c0078830>] (generic_handle_irq+0x30/0x40)
[ 61.359107] [<c0078830>] (generic_handle_irq+0x30/0x40) from
[<c000f91c>] (handle_IRQ+0x70/0x94)
[ 61.359120] [<c000f91c>] (handle_IRQ+0x70/0x94) from [<c0008518>]
(asm_do_IRQ+0x18/0x1c)
[ 61.359141] [<c0008518>] (asm_do_IRQ+0x18/0x1c) from [<c000e4cc>]
(__irq_svc+0x4c/0x94)
[ 61.359146] Exception stack(0xc05dff40 to 0xc05dff88)
[ 61.359146] ff40: 00000000 f0004000 00000001 60400100 c05de000 c05ea684
c061a708 c0ec0540
[ 61.359167] ff60: 00004059 562f5842 00000000 c05dffa4 c05dff60 c05dff88
c001bdb4 c000fc8c
[ 61.359167] ff80: 600f0013 ffffffff
[ 61.359184] [<c000e4cc>] (__irq_svc+0x4c/0x94) from [<c000fc8c>]
(cpu_idle+0x64/0xac)
[ 61.359197] [<c000fc8c>] (cpu_idle+0x64/0xac) from [<c03fc6b0>]
(rest_init+0x78/0x90)
[ 61.359197] [<c03fc6b0>] (rest_init+0x78/0x90) from [<c05a37b8>]
(start_kernel+0x2a0/0x2f0)
[ 61.359209] ---[ end trace 43fc67f7375f0800 ]---
[ 61.371043] olpc-ec-1.75: command 0x38 returned error 0x1
[ 61.391043] mmp3_usb_phy_init_internal: Init usb phy!!!
[ 61.441913] dcon_source_switch to CPU
[ 61.469846] olpc-dcon: The CPU has control
[ 61.761094] usb 1-1: reset high-speed USB device number 2 using pxau2o-
ehci
[ 62.022363] PM: resume of devices complete after 937.916 msecs
[ 62.823137] Restarting tasks ... done.
bash-4.2# [ 62.863643] olpc-ec-1.75: transmit FIFO not empty
[ 62.863706] ------------[ cut here ]------------
[ 62.872977] WARNING: at drivers/misc/olpc-ec-1-75.c:218
olpc_ec_1_75_strobe_ack+0x40/0x6c()
[ 62.881257] Modules linked in: fuse xt_tcpudp iptable_filter ip_tables
x_tables mousedev uinput libertas_sdio libertas joydev fb_sys_fops
sysimgblt sysfillrect syscopyarea sisusbvga psmouse mmp_camera
videobuf2_core videobuf2_dma_sg videobuf2_vmalloc videobuf2_memops zforce
ov7670 [last unloaded: udlfb]
[ 62.881257] [<c00152ec>] (unwind_backtrace+0x0/0x128) from [<c0401a24>]
(dump_stack+0x20/0x24)
[ 62.907987] [<c0401a24>] (dump_stack+0x20/0x24) from [<c0020908>]
(warn_slowpath_common+0x5c/0x74)
[ 62.916545] [<c0020908>] (warn_slowpath_common+0x5c/0x74) from
[<c002094c>] (warn_slowpath_null+0x2c/0x34)
[ 62.935017] [<c002094c>] (warn_slowpath_null+0x2c/0x34) from
[<c0232868>] (olpc_ec_1_75_strobe_ack+0x40/0x6c)
[ 62.935017] [<c0232868>] (olpc_ec_1_75_strobe_ack+0x40/0x6c) from
[<c023291c>] (olpc_ec_1_75_send_command+0x88/0x94)
[ 62.944857] [<c023291c>] (olpc_ec_1_75_send_command+0x88/0x94) from
[<c02336f4>] (olpc_ec_1_75_ssp_handler+0x270/0x510)
[ 62.955298] [<c02336f4>] (olpc_ec_1_75_ssp_handler+0x270/0x510) from
[<c0079038>] (handle_irq_event_percpu+0xc4/0x2c8)
[ 62.966009] [<c0079038>] (handle_irq_event_percpu+0xc4/0x2c8) from
[<c00792a4>] (handle_irq_event+0x68/0x84)
[ 62.976623] [<c00792a4>] (handle_irq_event+0x68/0x84) from [<c007bca8>]
(handle_level_irq+0xe4/0x11c)
[ 62.986377] [<c007bca8>] (handle_level_irq+0xe4/0x11c) from
[<c0078830>] (generic_handle_irq+0x30/0x40)
[ 63.004854] [<c0078830>] (generic_handle_irq+0x30/0x40) from
[<c000f91c>] (handle_IRQ+0x70/0x94)
[ 63.013572] [<c000f91c>] (handle_IRQ+0x70/0x94) from [<c0008518>]
(asm_do_IRQ+0x18/0x1c)
[ 63.021602] [<c0008518>] (asm_do_IRQ+0x18/0x1c) from [<c000e6ac>]
(__irq_usr+0x4c/0x80)
[ 63.029539] Exception stack(0xec877fb0 to 0xec877ff8)
[ 63.029539] 7fa0: 00005ff5 000000c1
00014c44 00000018
[ 63.034547] 7fc0: 00000003 7d4001f5 b6fc1898 b64f2874 b64f2874 b64f2ce8
b6d506c8 ffffeb1c
[ 63.042665] 7fe0: b6d508a8 b64f27ac b6d3d5d4 b6d3d544 200f0010 ffffffff
[ 63.057340] ---[ end trace 43fc67f7375f0801 ]---
[ 63.061967] olpc-ec-1.75: transmit FIFO not empty
[ 63.063186] ------------[ cut here ]------------
[ 63.072430] WARNING: at drivers/misc/olpc-ec-1-75.c:218
olpc_ec_1_75_strobe_ack+0x40/0x6c()
[ 63.072430] Modules linked in: fuse xt_tcpudp iptable_filter ip_tables
x_tables mousedev uinput libertas_sdio libertas joydev fb_sys_fops
sysimgblt sysfillrect syscopyarea sisusbvga psmouse mmp_camera
videobuf2_core videobuf2_dma_sg videobuf2_vmalloc videobuf2_memops zforce
ov7670 [last unloaded: udlfb]
[ 63.080710] [<c00152ec>] (unwind_backtrace+0x0/0x128) from [<c0401a24>]
(dump_stack+0x20/0x24)
[ 63.107379] [<c0401a24>] (dump_stack+0x20/0x24) from [<c0020908>]
(warn_slowpath_common+0x5c/0x74)
[ 63.115923] [<c0020908>] (warn_slowpath_common+0x5c/0x74) from
[<c002094c>] (warn_slowpath_null+0x2c/0x34)
[ 63.124813] [<c002094c>] (warn_slowpath_null+0x2c/0x34) from
[<c0232868>] (olpc_ec_1_75_strobe_ack+0x40/0x6c)
[ 63.144233] [<c0232868>] (olpc_ec_1_75_strobe_ack+0x40/0x6c) from
[<c023291c>] (olpc_ec_1_75_send_command+0x88/0x94)
[ 63.154674] [<c023291c>] (olpc_ec_1_75_send_command+0x88/0x94) from
[<c0232958>] (olpc_ec_1_75_prime_fifo+0x30/0x3c)
[ 63.165116] [<c0232958>] (olpc_ec_1_75_prime_fifo+0x30/0x3c) from
[<c0233670>] (olpc_ec_1_75_ssp_handler+0x1ec/0x510)
[ 63.165116] [<c0233670>] (olpc_ec_1_75_ssp_handler+0x1ec/0x510) from
[<c0079038>] (handle_irq_event_percpu+0xc4/0x2c8)
[ 63.186258] [<c0079038>] (handle_irq_event_percpu+0xc4/0x2c8) from
[<c00792a4>] (handle_irq_event+0x68/0x84)
[ 63.186258] [<c00792a4>] (handle_irq_event+0x68/0x84) from [<c007bca8>]
(handle_level_irq+0xe4/0x11c)
[ 63.205162] [<c007bca8>] (handle_level_irq+0xe4/0x11c) from
[<c0078830>] (generic_handle_irq+0x30/0x40)
[ 63.205162] [<c0078830>] (generic_handle_irq+0x30/0x40) from
[<c000f91c>] (handle_IRQ+0x70/0x94)
[ 63.214484] [<c000f91c>] (handle_IRQ+0x70/0x94) from [<c0008518>]
(asm_do_IRQ+0x18/0x1c)
[ 63.231229] [<c0008518>] (asm_do_IRQ+0x18/0x1c) from [<c000e4cc>]
(__irq_svc+0x4c/0x94)
[ 63.239167] Exception stack(0xec3fbe78 to 0xec3fbec0)
[ 63.244175] be60:
00000000 f0004000
[ 63.244175] be80: ec3fbec0 04009200 ec398240 ec398198 0000fa03 600f0113
00000000 00000000
[ 63.252286] bea0: c05eda90 ec3fbee4 ec3fbe98 ec3fbec0 c02c37c0 c02c47c4
600f0113 ffffffff
[ 63.260403] [<c000e4cc>] (__irq_svc+0x4c/0x94) from [<c02c47c4>]
(sdhci_do_set_ios+0x414/0x440)
[ 63.277162] [<c02c47c4>] (sdhci_do_set_ios+0x414/0x440) from
[<c02c4820>] (sdhci_set_ios+0x30/0x3c)
[ 63.277162] [<c02c4820>] (sdhci_set_ios+0x30/0x3c) from [<c02ac8bc>]
(mmc_power_up+0x178/0x194)
[ 63.294781] [<c02ac8bc>] (mmc_power_up+0x178/0x194) from [<c02ae11c>]
(mmc_rescan+0x2a4/0x378)
[ 63.303333] [<c02ae11c>] (mmc_rescan+0x2a4/0x378) from [<c003bfe4>]
(process_one_work+0x2a4/0x4a0)
[ 63.303333] [<c003bfe4>] (process_one_work+0x2a4/0x4a0) from
[<c003d21c>] (worker_thread+0x1f0/0x314)
[ 63.321375] [<c003d21c>] (worker_thread+0x1f0/0x314) from [<c004194c>]
(kthread+0x9c/0xa8)
[ 63.321375] [<c004194c>] (kthread+0x9c/0xa8) from [<c000f9fc>]
(kernel_thread_exit+0x0/0x8)
[ 63.337856] ---[ end trace 43fc67f7375f0802 ]---
[ 63.344964] olpc-ec-1.75: transmit FIFO not empty
[ 63.344964] ------------[ cut here ]------------
[ 63.349635] WARNING: at drivers/misc/olpc-ec-1-75.c:218
olpc_ec_1_75_strobe_ack+0x40/0x6c()
[ 63.354218] Modules linked in: fuse xt_tcpudp iptable_filter ip_tables
x_tables mousedev uinput libertas_sdio libertas joydev fb_sys_fops
sysimgblt sysfillrect syscopyarea sisusbvga psmouse mmp_camera
videobuf2_core videobuf2_dma_sg videobuf2_vmalloc videobuf2_memops zforce
ov7670 [last unloaded: udlfb]
[ 63.362495] [<c00152ec>] (unwind_backtrace+0x0/0x128) from [<c0401a24>]
(dump_stack+0x20/0x24)
[ 63.397744] [<c0401a24>] (dump_stack+0x20/0x24) from [<c0020908>]
(warn_slowpath_common+0x5c/0x74)
[ 63.397744] [<c0020908>] (warn_slowpath_common+0x5c/0x74) from
[<c002094c>] (warn_slowpath_null+0x2c/0x34)
[ 63.406633] [<c002094c>] (warn_slowpath_null+0x2c/0x34) from
[<c0232868>] (olpc_ec_1_75_strobe_ack+0x40/0x6c)
[ 63.426051] [<c0232868>] (olpc_ec_1_75_strobe_ack+0x40/0x6c) from
[<c023291c>] (olpc_ec_1_75_send_command+0x88/0x94)
[ 63.436493] [<c023291c>] (olpc_ec_1_75_send_command+0x88/0x94) from
[<c0232958>] (olpc_ec_1_75_prime_fifo+0x30/0x3c)
[ 63.436493] [<c0232958>] (olpc_ec_1_75_prime_fifo+0x30/0x3c) from
[<c0233950>] (olpc_ec_1_75_ssp_handler+0x4cc/0x510)
[ 63.457467] [<c0233950>] (olpc_ec_1_75_ssp_handler+0x4cc/0x510) from
[<c0079038>] (handle_irq_event_percpu+0xc4/0x2c8)
[ 63.468079] [<c0079038>] (handle_irq_event_percpu+0xc4/0x2c8) from
[<c00792a4>] (handle_irq_event+0x68/0x84)
[ 63.477832] [<c00792a4>] (handle_irq_event+0x68/0x84) from [<c007bca8>]
(handle_level_irq+0xe4/0x11c)
[ 63.477832] [<c007bca8>] (handle_level_irq+0xe4/0x11c) from
[<c0078830>] (generic_handle_irq+0x30/0x40)
[ 63.496307] [<c0078830>] (generic_handle_irq+0x30/0x40) from
[<c000f91c>] (handle_IRQ+0x70/0x94)
[ 63.505028] [<c000f91c>] (handle_IRQ+0x70/0x94) from [<c0008518>]
(asm_do_IRQ+0x18/0x1c)
[ 63.513056] [<c0008518>] (asm_do_IRQ+0x18/0x1c) from [<c000e6ac>]
(__irq_usr+0x4c/0x80)
[ 63.513056] Exception stack(0xec89ffb0 to 0xec89fff8)
[ 63.526003] ffa0: 00000000 00000000
00000001 00000001
[ 63.534111] ffc0: 01070b88 0037ca00 00000000 00000000 00000001 00000000
00000000 0000000c
[ 63.542228] ffe0: 00000000 be7ff038 b6775860 b6732264 600f0010 ffffffff
[ 63.548788] ---[ end trace 43fc67f7375f0803 ]---
[ 63.561146] olpc-ec-1.75: command 0x15 returned error 0x1
[ 63.561171] power_supply olpc-battery: driver failed to report
`present' property: 4294967240
[ 63.674894] olpc-ec-1.75: transmit FIFO not empty
[ 63.680246] ------------[ cut here ]------------
[ 63.680246] WARNING: at drivers/misc/olpc-ec-1-75.c:218
olpc_ec_1_75_strobe_ack+0x40/0x6c()
[ 63.684840] Modules linked in: fuse xt_tcpudp iptable_filter ip_tables
x_tables mousedev uinput libertas_sdio libertas joydev fb_sys_fops
sysimgblt sysfillrect syscopyarea sisusbvga psmouse mmp_camera
videobuf2_core videobuf2_dma_sg videobuf2_vmalloc videobuf2_memops zforce
ov7670 [last unloaded: udlfb]
[ 63.693119] [<c00152ec>] (unwind_backtrace+0x0/0x128) from [<c0401a24>]
(dump_stack+0x20/0x24)
[ 63.728356] [<c0401a24>] (dump_stack+0x20/0x24) from [<c0020908>]
(warn_slowpath_common+0x5c/0x74)
[ 63.737248] [<c0020908>] (warn_slowpath_common+0x5c/0x74) from
[<c002094c>] (warn_slowpath_null+0x2c/0x34)
[ 63.746827] [<c002094c>] (warn_slowpath_null+0x2c/0x34) from
[<c0232868>] (olpc_ec_1_75_strobe_ack+0x40/0x6c)
[ 63.756668] [<c0232868>] (olpc_ec_1_75_strobe_ack+0x40/0x6c) from
[<c023291c>] (olpc_ec_1_75_send_command+0x88/0x94)
[ 63.767109] [<c023291c>] (olpc_ec_1_75_send_command+0x88/0x94) from
[<c02336f4>] (olpc_ec_1_75_ssp_handler+0x270/0x510)
[ 63.777819] [<c02336f4>] (olpc_ec_1_75_ssp_handler+0x270/0x510) from
[<c0079038>] (handle_irq_event_percpu+0xc4/0x2c8)
[ 63.777819] [<c0079038>] (handle_irq_event_percpu+0xc4/0x2c8) from
[<c00792a4>] (handle_irq_event+0x68/0x84)
[ 63.788434] [<c00792a4>] (handle_irq_event+0x68/0x84) from [<c007bca8>]
(handle_level_irq+0xe4/0x11c)
[ 63.807336] [<c007bca8>] (handle_level_irq+0xe4/0x11c) from
[<c0078830>] (generic_handle_irq+0x30/0x40)
[ 63.807336] [<c0078830>] (generic_handle_irq+0x30/0x40) from
[<c000f91c>] (handle_IRQ+0x70/0x94)
[ 63.816665] [<c000f91c>] (handle_IRQ+0x70/0x94) from [<c0008518>]
(asm_do_IRQ+0x18/0x1c)
[ 63.825382] [<c0008518>] (asm_do_IRQ+0x18/0x1c) from [<c000e6ac>]
(__irq_usr+0x4c/0x80)
[ 63.841348] Exception stack(0xec8c9fb0 to 0xec8c9ff8)
[ 63.841348] 9fa0: 000368d0 00020588
000189c4 b6c0d64c
[ 63.846357] 9fc0: 0003a928 0001f798 00020588 00000000 b6ebe448 0003db40
0001b460 00000004
[ 63.862582] 9fe0: b6ccf4a0 beca0b10 b6bd0c90 b6df28f4 200b0010 ffffffff
[ 63.869142] ---[ end trace 43fc67f7375f0804 ]---
[ 63.874055] olpc-ec-1.75: transmit FIFO not empty
[ 63.874055] ------------[ cut here ]------------
[ 63.883301] WARNING: at driv
}}}
--
Ticket URL: <http://dev.laptop.org/ticket/12335>
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