[BBB] kernel panic during boot

Manuel Stühn freebsdnewbie at freenet.de
Tue Aug 8 11:22:16 UTC 2017 

Hi,
booting a FreeBSD CURRENT r322118 on a BBB (GENERIC-NODEBUG kernel) ends 
with a panic:

[...]
iichb0: <TI I2C Controller> mem 0x44e0b000-0x44e0bfff irq 17 on 
simplebus0
iichb0: I2C revision 4.0 FIFO size: 32 bytes
iicbus0: <OFW I2C bus> on iichb0
panic: timed sleep before timers are working
cpuid = 0
time = 1
KDB: stack backtrace:
db_trace_self() at db_trace_self
[...]

The complete boot log incl. backtrace is attached.

Any ideas?


-------------- next part --------------
U-Boot SPL 2017.01-rc3 (Feb 11 2017 - 00:43:55)
Trying to boot from MMC1MMC partition switch failed
*** Warning - MMC partition switch failed, using default environment

reading u-boot.img
reading u-boot.img


U-Boot 2017.01-rc3 (Feb 11 2017 - 00:43:55 +0000)

CPU  : AM335X-GP rev 2.1
I2C:   ready
DRAM:  512 MiB
MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1
Card did not respond to voltage select!
*** Warning - MMC init failed, using default environment

<ethaddr> not set. Validating first E-fuse MAC
Net:   cpsw, usb_ether
Press SPACE to abort autoboot in 2 seconds
switch to partitions #0, OK
mmc0 is current device
SD/MMC found on device 0
reading boot.scr
** Unable to read file boot.scr **
reading uEnv.txt
** Unable to read file uEnv.txt **
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1...
Found FreeBSD U-Boot Loader (bin)
reading ubldr.bin
237704 bytes read in 20 ms (11.3 MiB/s)
## Starting application at 0x82000000 ...
Consoles: U-Boot console  
Compatible U-Boot API signature found @0x9df30c58

FreeBSD/armv6 U-Boot loader, Revision 1.2
(Sat Mar 11 12:11:52 CET 2017 manuel at freebsd-t420)

DRAM: 512MB
Card did not respond to voltage select!
Card did not respond to voltage select!
Card did not respond to voltage select!
Number of U-Boot devices: 2
U-Boot env: loaderdev not set, will probe all devices.
Found U-Boot device: disk
  Probing all disk devices...
  Checking unit=0 slice=<auto> partition=<auto>... good.
Booting from disk0s2a:
/boot/kernel/kernel data=0x813d80+0x180280 syms=[0x4+0x8c6a0+0x4+0xc9f3c]

Hit [Enter] to boot immediately, or any other key for command prompt.
Booting [/boot/kernel/kernel]...               
/boot/dtb/am335x-boneblack.dtb size=0x103f9
Loaded DTB from file 'am335x-boneblack.dtb'.
Kernel entry at 0x82200100...
Kernel args: (null)
ARM Debug Architecture not supported
KDB: debugger backends: ddb
KDB: current backend: ddb
Copyright (c) 1992-2017 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
	The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 12.0-CURRENT #0 3df4ae2137c(master): Mon Aug  7 16:03:23 CEST 2017
    manuel at freebsd-t420:/usr/home/manuel/devel/github/freebsd/obj/arm.armv6/usr/home/manuel/devel/github/freebsd/src/sys/GENERIC-NODEBUG arm
FreeBSD clang version 5.0.0 (branches/release_50 309439) (based on LLVM 5.0.0svn)
VT: init without driver.
CPU: ARM Cortex-A8 r3p2 (ECO: 0x00000000)
CPU Features: 
  Thumb2, Security, VMSAv7
Optional instructions: 
  UMULL, SMULL, SIMD(ext)
LoUU:2 LoC:3 LoUIS:1 
Cache level 1:
 32KB/64B 4-way data cache WT WB Read-Alloc
 32KB/64B 4-way instruction cache Read-Alloc
Cache level 2:
 256KB/64B 8-way unified cache WT WB Read-Alloc Write-Alloc
real memory  = 536870912 (512 MB)
avail memory = 511221760 (487 MB)
Texas Instruments AM335x Processor, Revision ES2.1
arc4random: no preloaded entropy cache
random: entropy device external interface
kbd0 at kbdmux0
ofwbus0: <Open Firmware Device Tree>
simplebus0: <Flattened device tree simple bus> on ofwbus0
simplebus1: <Flattened device tree simple bus> on simplebus0
simplebus2: <Flattened device tree simple bus> mem 0x210000-0x211fff on simplebus1
ti_scm0: <TI Control Module> mem 0-0x7ff on simplebus2
regfix0: <Fixed Regulator> on ofwbus0
clk_fixed0: <Fixed clock> on ofwbus0
ti_aintc0: <TI AINTC Interrupt Controller> mem 0x48200000-0x48200fff on simplebus0
ti_aintc0: Revision 5.0
cpulist0: <Open Firmware CPU Group> on ofwbus0
cpu0: <Open Firmware CPU> on cpulist0
pmu0: <Performance Monitoring Unit> irq 0 on ofwbus0
am335x_prcm0: <AM335x Power and Clock Management> mem 0x200000-0x203fff on simplebus1
am335x_prcm0: Clocks: System 24.0 MHz, CPU 1000 MHz
ti_pinmux0: <TI Pinmux Module> mem 0x800-0xa37 on simplebus2
am335x_scm0: <AM335x Control Module Extension> on ti_scm0
gpio0: <TI AM335x General Purpose I/O (GPIO)> mem 0x44e07000-0x44e07fff irq 7 on simplebus0
gpiobus0: <OFW GPIO bus> on gpio0
gpioc0: <GPIO controller> on gpio0
gpio1: <TI AM335x General Purpose I/O (GPIO)> mem 0x4804c000-0x4804cfff irq 8 on simplebus0
gpiobus1: <OFW GPIO bus> on gpio1
gpioc1: <GPIO controller> on gpio1
gpio2: <TI AM335x General Purpose I/O (GPIO)> mem 0x481ac000-0x481acfff irq 9 on simplebus0
gpiobus2: <OFW GPIO bus> on gpio2
gpioc2: <GPIO controller> on gpio2
gpio3: <TI AM335x General Purpose I/O (GPIO)> mem 0x481ae000-0x481aefff irq 10 on simplebus0
gpiobus3: <OFW GPIO bus> on gpio3
gpioc3: <GPIO controller> on gpio3
uart0: console (115384,n,8,1)atible)> mem 0x44e09000-0x44e0afff irq 11 on simplebus0
iichb0: <TI I2C Controller> mem 0x44e0b000-0x44e0bfff irq 17 on simplebus0
iichb0: I2C revision 4.0 FIFO size: 32 bytes
iicbus0: <OFW I2C bus> on iichb0
panic: timed sleep before timers are working
cpuid = 0
time = 1
KDB: stack backtrace:
db_trace_self() at db_trace_self
	 pc = 0xc05a1b7c  lr = 0xc0061f5c (db_trace_self_wrapper+0x30)
	 sp = 0xc0c138a8  fp = 0xc0c139c0
db_trace_self_wrapper() at db_trace_self_wrapper+0x30
	 pc = 0xc0061f5c  lr = 0xc028cd18 (vpanic+0x158)
	 sp = 0xc0c139c8  fp = 0xc0c139e8
	 r4 = 0x00000100  r5 = 0x00000001
	 r6 = 0xc06cd645  r7 = 0xc091b2c8
vpanic() at vpanic+0x158
	 pc = 0xc028cd18  lr = 0xc028cbc0 (vpanic)
	 sp = 0xc0c139f0  fp = 0xc0c139f4
	 r4 = 0xc093ddc0  r5 = 0x00000004
	 r6 = 0xfffffa38  r7 = 0xc2997600
	 r8 = 0xfffffa3c  r9 = 0xfffffa38
	r10 = 0x00000001
vpanic() at vpanic
	 pc = 0xc028cbc0  lr = 0xc02e6a80 (sleepq_timeout)
	 sp = 0xc0c139fc  fp = 0xc0c13a48
	 r4 = 0xc2997600  r5 = 0xfffffa3c
	 r6 = 0xfffffa38  r7 = 0x00000001
	 r8 = 0xc0c139f4  r9 = 0xc028cbc0
	r10 = 0xc0c139fc
sleepq_timeout() at sleepq_timeout
	 pc = 0xc02e6a80  lr = 0xc0298390 (_sleep+0x24c)
	 sp = 0xc0c13a50  fp = 0xc0c13aa0
	 r4 = 0xc2997618  r5 = 0x00000000
	 r6 = 0xc2997600  r7 = 0xfffffa3c
	 r8 = 0xfffffa38 r10 = 0x00000001
_sleep() at _sleep+0x24c
	 pc = 0xc0298390  lr = 0xc063b8cc (ti_i2c_transfer+0x260)
	 sp = 0xc0c13aa8  fp = 0xc0c13ae8
	 r4 = 0x00000000  r5 = 0x00000000
	 r6 = 0xc299760c  r7 = 0x00000000
	 r8 = 0xc0c13afc  r9 = 0xc2997600
	r10 = 0x00000000
ti_i2c_transfer() at ti_i2c_transfer+0x260
	 pc = 0xc063b8cc  lr = 0xc00847b0 (ds133x_probe+0x64)
	 sp = 0xc0c13af0  fp = 0xc0c13b38
	 r4 = 0x00000002  r5 = 0x0000000f
	 r6 = 0x000000d0  r7 = 0xc2a46800
	 r8 = 0x000100d0  r9 = 0xc0c13b14
	r10 = 0xc2ae5b80
ds133x_probe() at ds133x_probe+0x64
	 pc = 0xc00847b0  lr = 0xc02c9018 (device_probe_child+0x1dc)
	 sp = 0xc0c13b40  fp = 0xc0c13b68
	 r4 = 0xc2ae5b80  r5 = 0x00000000
	 r6 = 0xc29aa800  r7 = 0xc2a46800
	 r8 = 0x00000000  r9 = 0x00000000
	r10 = 0xc285d280
device_probe_child() at device_probe_child+0x1dc
	 pc = 0xc02c9018  lr = 0xc02c9d24 (device_probe+0x90)
	 sp = 0xc0c13b70  fp = 0xc0c13b80
	 r4 = 0xffffffff  r5 = 0xc2ae5b80
	 r6 = 0x00000000  r7 = 0xc06a5d7b
	 r8 = 0xc2aa34c0  r9 = 0xc0c13ca8
	r10 = 0xc07d9ed8
device_probe() at device_probe+0x90
	 pc = 0xc02c9d24  lr = 0xc02cb64c (bus_generic_attach+0x1c)
	 sp = 0xc0c13b88  fp = 0xc0c13b90
	 r4 = 0xc2ae5b80  r5 = 0xc06e1d53
	 r6 = 0x00000000 r10 = 0xc07d9ed8
bus_generic_attach() at bus_generic_attach+0x1c
	 pc = 0xc02cb64c  lr = 0xc0089ee8 (ofw_iicbus_attach+0x2e4)
	 sp = 0xc0c13b98  fp = 0xc0c13cd0
	 r4 = 0xc2ae5c00 r10 = 0xc07d9ed8
ofw_iicbus_attach() at ofw_iicbus_attach+0x2e4
	 pc = 0xc0089ee8  lr = 0xc02ca2ec (device_attach+0x4ec)
	 sp = 0xc0c13cd8  fp = 0xc0c13d20
	 r4 = 0xc2ae5c00  r5 = 0xc095a270
	 r6 = 0xc29a3780  r7 = 0x00000000
	 r8 = 0xc093aa4c  r9 = 0xc02ce34c
	r10 = 0xc2ae5c50
device_attach() at device_attach+0x4ec
	 pc = 0xc02ca2ec  lr = 0xc02cb658 (bus_generic_attach+0x28)
	 sp = 0xc0c13d28  fp = 0xc0c13d30
	 r4 = 0xc2ae5c00  r5 = 0x80040006
	 r6 = 0x00000000  r7 = 0x00000000
	 r8 = 0xc29a37d0  r9 = 0xc2997628
	r10 = 0xc2997600
bus_generic_attach() at bus_generic_attach+0x28
	 pc = 0xc02cb658  lr = 0xc063b494 (ti_i2c_attach+0x364)
	 sp = 0xc0c13d38  fp = 0xc0c13d78
	 r4 = 0xc29a3780 r10 = 0xc2997600
ti_i2c_attach() at ti_i2c_attach+0x364
	 pc = 0xc063b494  lr = 0xc02ca2ec (device_attach+0x4ec)
	 sp = 0xc0c13d80  fp = 0xc0c13dc8
	 r4 = 0xc29a3780  r5 = 0xc095a270
	 r6 = 0xc29a4480  r7 = 0x00000000
	 r8 = 0xc093aa4c  r9 = 0xc02ce34c
	r10 = 0xc29a37d0
device_attach() at device_attach+0x4ec
	 pc = 0xc02ca2ec  lr = 0xc02cbc98 (bus_generic_new_pass+0xf8)
	 sp = 0xc0c13dd0  fp = 0xc0c13de8
	 r4 = 0xc29a3780  r5 = 0xc07d0a94
	 r6 = 0xc080d3f4  r7 = 0x00000000
	 r8 = 0xc092b3b0  r9 = 0xc07074d4
	r10 = 0xc093e188
bus_generic_new_pass() at bus_generic_new_pass+0xf8
	 pc = 0xc02cbc98  lr = 0xc02cbc78 (bus_generic_new_pass+0xd8)
	 sp = 0xc0c13df0  fp = 0xc0c13e08
	 r4 = 0xc29a4480  r5 = 0xc07d0a94
	 r6 = 0xc07be0a8  r7 = 0x00000000
	 r8 = 0xc092b3b0 r10 = 0xc093e188
bus_generic_new_pass() at bus_generic_new_pass+0xd8
	 pc = 0xc02cbc78  lr = 0xc02cbc78 (bus_generic_new_pass+0xd8)
	 sp = 0xc0c13e10  fp = 0xc0c13e28
	 r4 = 0xc29a4800  r5 = 0xc07d0a94
	 r6 = 0xc07f4a60  r7 = 0x00000000
	 r8 = 0xc092b3b0 r10 = 0xc093e188
bus_generic_new_pass() at bus_generic_new_pass+0xd8
	 pc = 0xc02cbc78  lr = 0xc02cbc78 (bus_generic_new_pass+0xd8)
	 sp = 0xc0c13e30  fp = 0xc0c13e48
	 r4 = 0xc29a4a80  r5 = 0xc07d0a94
	 r6 = 0xc092b3b0  r7 = 0x00000000
	 r8 = 0xc092b3b0 r10 = 0xc093e188
bus_generic_new_pass() at bus_generic_new_pass+0xd8
	 pc = 0xc02cbc78  lr = 0xc02cd6ec (root_bus_configure+0x80)
	 sp = 0xc0c13e50  fp = 0xc0c13e68
	 r4 = 0xc07d0a94  r5 = 0xc29a4c80
	 r6 = 0xc092b3b0  r7 = 0xc285e060
	 r8 = 0xc093ebcc r10 = 0xc093e188
root_bus_configure() at root_bus_configure+0x80
	 pc = 0xc02cd6ec  lr = 0xc0222114 (mi_startup+0xfc)
	 sp = 0xc0c13e70  fp = 0xc0c13e90
	 r4 = 0xc093e284  r5 = 0x00000001
	 r6 = 0xc07065cc  r7 = 0x00000000
	 r8 = 0xc093e280 r10 = 0xc093e188
mi_startup() at mi_startup+0xfc
	 pc = 0xc0222114  lr = 0xc0000244 (btext+0x144)
	 sp = 0xc0c13e98  fp = 0x00000000
	 r4 = 0xc0000378  r5 = 0xc0990000
	 r6 = 0x82056600  r7 = 0x00c52078
	 r8 = 0xc0b0e000  r9 = 0x9ff9dee0
	r10 = 0x44e35000
btext() at btext+0x144
	 pc = 0xc0000244  lr = 0xc0000244 (btext+0x144)
	 sp = 0xc0c13e98  fp = 0x00000000
KDB: enter: panic
[ thread pid 0 tid 100000 ]
Stopped at      $d.3:   ldrb    r15, [r15, r15, ror r15]!
db>

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