[sbc_gxx] kernel BUG at include/linux/mtd/map.h:148!

2014-08-07 Thread Nick Krause 
On Thu, Aug 7, 2014 at 6:46 PM, Brian Norris
 wrote:
> Hi,
>
> On Tue, Aug 05, 2014 at 08:08:57PM -0400, Nick Krause wrote:
>> On Tue, Aug 5, 2014 at 9:59 AM, Fengguang Wu  
>> wrote:
>> > Hello,
>> >
>> > This is an old BUG that still lives in linux-next.
>> >
>> > [4.284620] device id = 2670
>> > [4.286157] SBC-GXx flash: IO:0x258-0x259 MEM:0xdc000-0xd
>> > [4.287060] [ cut here ]
>> > [4.287722] kernel BUG at include/linux/mtd/map.h:148!
>> > [4.288048] invalid opcode:  [#1] PREEMPT SMP
>>
>> I am new , here and will try to trace your issue on linus's tree
>> unless there is a major difference between Linus's tree and
>> linux-next.
>> If there is please let me known before I start tracing this.
>
> This is a known issue, and Fengguang has reported this before:
>
>   http://lists.infradead.org/pipermail/linux-mtd/2014-March/053019.html
>
> I'm still not quite sure how to solve this one. It seems to be a
> limitation of the kconfig language.
>
> Brian


I am and banned from the lists but trying to get back on, if you want
my help please
let me known. I will read this bug report first but just tell me if
you want some help.
Cheers Nick

[sbc_gxx] kernel BUG at include/linux/mtd/map.h:148!

2014-08-07 Thread Brian Norris 
Hi,

On Tue, Aug 05, 2014 at 08:08:57PM -0400, Nick Krause wrote:
> On Tue, Aug 5, 2014 at 9:59 AM, Fengguang Wu  
> wrote:
> > Hello,
> >
> > This is an old BUG that still lives in linux-next.
> >
> > [4.284620] device id = 2670
> > [4.286157] SBC-GXx flash: IO:0x258-0x259 MEM:0xdc000-0xd
> > [4.287060] [ cut here ]
> > [4.287722] kernel BUG at include/linux/mtd/map.h:148!
> > [4.288048] invalid opcode:  [#1] PREEMPT SMP
>
> I am new , here and will try to trace your issue on linus's tree
> unless there is a major difference between Linus's tree and
> linux-next.
> If there is please let me known before I start tracing this.

This is a known issue, and Fengguang has reported this before:

  http://lists.infradead.org/pipermail/linux-mtd/2014-March/053019.html

I'm still not quite sure how to solve this one. It seems to be a
limitation of the kconfig language.

Brian

[sbc_gxx] kernel BUG at include/linux/mtd/map.h:148!

2014-08-05 Thread Fengguang Wu 
Hello,

This is an old BUG that still lives in linux-next.

[4.284620] device id = 2670
[4.286157] SBC-GXx flash: IO:0x258-0x259 MEM:0xdc000-0xd
[4.287060] [ cut here ]
[4.287722] kernel BUG at include/linux/mtd/map.h:148!
[4.288048] invalid opcode:  [#1] PREEMPT SMP 
[4.288048] CPU 1 
[4.288048] Pid: 1, comm: swapper/0 Not tainted 3.5.0-rc4-00162-g49099c4 #17 
Bochs Bochs
[4.288048] RIP: 0010:[]  [] 
mtd_do_chip_probe+0x1d/0x1f
[4.288048] RSP: 0018:880011049e20  EFLAGS: 00010246
[4.288048] RAX:  RBX: 82a23550 RCX: 
[4.288048] RDX: 880011049e20 RSI: 82a23580 RDI: 880011049e80
[4.288048] RBP: 880011049e80 R08: 0003 R09: 810d6c93
[4.288048] R10:  R11: 0001 R12: 82a23eb0
[4.288048] R13: 828790ce R14:  R15: 
[4.288048] FS:  () GS:88001260() 
knlGS:
[4.288048] CS:  0010 DS:  ES:  CR0: 8005003b
[4.288048] CR2:  CR3: 0298c000 CR4: 000406e0
[4.288048] DR0:  DR1:  DR2: 
[4.288048] DR3:  DR6: 0ff0 DR7: 0400
[4.288048] Process swapper/0 (pid: 1, threadinfo 880011048000, task 
88001104)
[4.288048] Stack:
[4.288048]     

[4.288048]     

[4.288048]     

[4.288048] Call Trace:
[4.288048]  [] cfi_probe+0x15/0x17
[4.288048]  [] do_map_probe+0xa0/0xac
[4.288048]  [] ? physmap_init+0x12/0x12
[4.288048]  [] init_sbc_gxx+0x104/0x15b
[4.288048]  [] do_one_initcall+0x86/0x208
[4.288048]  [] kernel_init+0x10d/0x1c2
[4.288048]  [] ? do_early_param+0xc3/0xc3
[4.288048]  [] kernel_thread_helper+0x4/0x10
[4.288048]  [] ? retint_restore_args+0x13/0x13
[4.288048]  [] ? do_one_initcall+0x208/0x208
[4.288048]  [] ? gs_change+0x13/0x13
[4.288048] Code: 83 c4 58 5b 41 5c 41 5d 41 5e 41 5f 5d c3 55 48 89 e5 48 
83 ec 60 66 66 66 66 90 31 c0 b9 18 00 00 00 48 8d 55 a0 48 89 d7 f3 ab <0f> 0b 
55 48 89 e5 66 66 66 66 90 48 c7 c6 a0 39 a2 82 e8 cc ff 
[4.288048] RIP  [] mtd_do_chip_probe+0x1d/0x1f
[4.288048]  RSP 
[4.321423] ---[ end trace 169195d5d1f9be6e ]---
[4.322118] swapper/0 (1) used greatest stack depth: 3768 bytes left

This script may reproduce the error.


#!/bin/bash

kernel=$1
initrd=quantal-core-x86_64.cgz

wget --no-clobber 
https://github.com/fengguang/reproduce-kernel-bug/raw/master/initrd/$initrd

kvm=(
qemu-system-x86_64
-enable-kvm
-cpu Haswell,+smep,+smap
-kernel $kernel
-initrd $initrd
-m 320
-smp 2
-net nic,vlan=1,model=e1000
-net user,vlan=1
-boot order=nc
-no-reboot
-watchdog i6300esb
-rtc base=localtime
-serial stdio
-display none
-monitor null 
)

append=(
hung_task_panic=1
earlyprintk=ttyS0,115200
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
panic=10
softlockup_panic=1
nmi_watchdog=panic
prompt_ramdisk=0
console=ttyS0,115200
console=tty0
vga=normal
root=/dev/ram0
rw
drbd.minor_count=8
)

"${kvm[@]}" --append "${append[*]}"


Thanks,
Fengguang
-- next part --
early console in setup code
Probing EDD (edd=off to disable)... ok
early console in decompress_kernel

Decompressing Linux... Parsing ELF... done.
Booting the kernel.
[0.00] Initializing cgroup subsys cpu
[0.00] Linux version 3.5.0-rc4-00162-g49099c4 (kbuild at lkp-hsx01) 
(gcc version 4.8.2 (Debian 4.8.2-18) ) #17 SMP PREEMPT Tue Aug 5 16:41:03 CST 
2014
[0.00] Command line: hung_task_panic=1 earlyprintk=ttyS0,115200 debug 
apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=10 
softlockup_panic=1 nmi_watchdog=panic  prompt_ramdisk=0 console=ttyS0,115200 
console=tty0 vga=normal  root=/dev/ram0 rw 
link=/kbuild-tests/run-queue/kvm/x86_64-randconfig-s0-08051229/linux-devel:devel-hourly-2014080511:49099c4991da3c94773f888aea2e9d27b8a7c6d1:bisect-linux1/.vmlinuz-49099c4991da3c94773f888aea2e9d27b8a7c6d1-20140805164127-2-kbuild
 branch=linux-devel/devel-hourly-2014080511 
BOOT_IMAGE=/kernel/x86_64-randconfig-s0-08051229/49099c4991da3c94773f888aea2e9d27b8a7c6d1/vmlinuz-3.5.0-rc4-00162-g49099c4
 drbd.minor_count=8
[0.00] e820:

[sbc_gxx] kernel BUG at include/linux/mtd/map.h:148!

2014-08-05 Thread Nick Krause 
On Tue, Aug 5, 2014 at 9:59 AM, Fengguang Wu  wrote:
> Hello,
>
> This is an old BUG that still lives in linux-next.
>
> [4.284620] device id = 2670
> [4.286157] SBC-GXx flash: IO:0x258-0x259 MEM:0xdc000-0xd
> [4.287060] [ cut here ]
> [4.287722] kernel BUG at include/linux/mtd/map.h:148!
> [4.288048] invalid opcode:  [#1] PREEMPT SMP
> [4.288048] CPU 1
> [4.288048] Pid: 1, comm: swapper/0 Not tainted 3.5.0-rc4-00162-g49099c4 
> #17 Bochs Bochs
> [4.288048] RIP: 0010:[]  [] 
> mtd_do_chip_probe+0x1d/0x1f
> [4.288048] RSP: 0018:880011049e20  EFLAGS: 00010246
> [4.288048] RAX:  RBX: 82a23550 RCX: 
> 
> [4.288048] RDX: 880011049e20 RSI: 82a23580 RDI: 
> 880011049e80
> [4.288048] RBP: 880011049e80 R08: 0003 R09: 
> 810d6c93
> [4.288048] R10:  R11: 0001 R12: 
> 82a23eb0
> [4.288048] R13: 828790ce R14:  R15: 
> 
> [4.288048] FS:  () GS:88001260() 
> knlGS:
> [4.288048] CS:  0010 DS:  ES:  CR0: 8005003b
> [4.288048] CR2:  CR3: 0298c000 CR4: 
> 000406e0
> [4.288048] DR0:  DR1:  DR2: 
> 
> [4.288048] DR3:  DR6: 0ff0 DR7: 
> 0400
> [4.288048] Process swapper/0 (pid: 1, threadinfo 880011048000, task 
> 88001104)
> [4.288048] Stack:
> [4.288048]     
> 
> [4.288048]     
> 
> [4.288048]     
> 
> [4.288048] Call Trace:
> [4.288048]  [] cfi_probe+0x15/0x17
> [4.288048]  [] do_map_probe+0xa0/0xac
> [4.288048]  [] ? physmap_init+0x12/0x12
> [4.288048]  [] init_sbc_gxx+0x104/0x15b
> [4.288048]  [] do_one_initcall+0x86/0x208
> [4.288048]  [] kernel_init+0x10d/0x1c2
> [4.288048]  [] ? do_early_param+0xc3/0xc3
> [4.288048]  [] kernel_thread_helper+0x4/0x10
> [4.288048]  [] ? retint_restore_args+0x13/0x13
> [4.288048]  [] ? do_one_initcall+0x208/0x208
> [4.288048]  [] ? gs_change+0x13/0x13
> [4.288048] Code: 83 c4 58 5b 41 5c 41 5d 41 5e 41 5f 5d c3 55 48 89 e5 48 
> 83 ec 60 66 66 66 66 90 31 c0 b9 18 00 00 00 48 8d 55 a0 48 89 d7 f3 ab <0f> 
> 0b 55 48 89 e5 66 66 66 66 90 48 c7 c6 a0 39 a2 82 e8 cc ff
> [4.288048] RIP  [] mtd_do_chip_probe+0x1d/0x1f
> [4.288048]  RSP 
> [4.321423] ---[ end trace 169195d5d1f9be6e ]---
> [4.322118] swapper/0 (1) used greatest stack depth: 3768 bytes left
>
> This script may reproduce the error.
>
> 
> #!/bin/bash
>
> kernel=$1
> initrd=quantal-core-x86_64.cgz
>
> wget --no-clobber 
> https://github.com/fengguang/reproduce-kernel-bug/raw/master/initrd/$initrd
>
> kvm=(
> qemu-system-x86_64
> -enable-kvm
> -cpu Haswell,+smep,+smap
> -kernel $kernel
> -initrd $initrd
> -m 320
> -smp 2
> -net nic,vlan=1,model=e1000
> -net user,vlan=1
> -boot order=nc
> -no-reboot
> -watchdog i6300esb
> -rtc base=localtime
> -serial stdio
> -display none
> -monitor null
> )
>
> append=(
> hung_task_panic=1
> earlyprintk=ttyS0,115200
> debug
> apic=debug
> sysrq_always_enabled
> rcupdate.rcu_cpu_stall_timeout=100
> panic=10
> softlockup_panic=1
> nmi_watchdog=panic
> prompt_ramdisk=0
> console=ttyS0,115200
> console=tty0
> vga=normal
> root=/dev/ram0
> rw
> drbd.minor_count=8
> )
>
> "${kvm[@]}" --append "${append[*]}"
> 
>
> Thanks,
> Fengguang
>
> ___
> LKP mailing list
> LKP at linux.intel.com
>
I am new , here and will try to trace your issue on linus's tree
unless there is a major difference between Linus's tree and
linux-next.
If there is please let me known before I start tracing this.
Best Regards ,
Nick