[Click] Kclick: scheduling while atomic

[Anatolij Zubow]

Hi,

 

we are running in some serious problems when using Click in kernel space
(kclick.ko). The problems occurs with Click 1.4.3

as well as the newest version from the CVS (1.5.x). The problem leads to
the following kernel OOPS.

 

Any suggestions?

 

Regards,

Tolja

 

root at wgt60:/# dmesg

 [<8002c6c8>] printk+0x0/0x28

 [<c07cba78>] _Z11click_schedPv+0xcc/0x1d0 [click]

 [<8000b764>] kernel_thread_helper+0x10/0x18

 [<8000b754>] kernel_thread_helper+0x0/0x18

 

scheduling while atomic: kclick/0x802917e8/237

Call Trace:

 [<801e8528>] schedule+0x74/0xb24

 [<c067ec20>] _ZN6Master15process_pendingEP12RouterThread+0xb4/0xd8
[click]

 [<c07cb9a0>] _Z14soft_spin_lockP10spinlock_t+0x0/0xc [click]

 [<801e84b4>] schedule+0x0/0xb24

 [<c067e8ec>] _ZN6Master12check_driverEv+0x0/0x280 [click]

 [<c0672394>] _ZN12RouterThread6driverEv+0x504/0x6f8 [click]

 [<8002e15c>] reparent_to_init+0x214/0x220

 [<c0651f90>] _Znaj+0x40/0x4c [click]

 [<c07cb9a0>] _Z14soft_spin_lockP10spinlock_t+0x0/0xc [click]

 [<8002c6c8>] printk+0x0/0x28

 [<c07cba78>] _Z11click_schedPv+0xcc/0x1d0 [click]

 [<8000b764>] kernel_thread_helper+0x10/0x18

 [<8000b754>] kernel_thread_helper+0x0/0x18

 

scheduling while atomic: kclick/0x802917e8/237

Call Trace:

 [<801e8528>] schedule+0x74/0xb24

 [<c067ec20>] _ZN6Master15process_pendingEP12RouterThread+0xb4/0xd8
[click]

 [<c07cb9a0>] _Z14soft_spin_lockP10spinlock_t+0x0/0xc [click]

 [<801e84b4>] schedule+0x0/0xb24

 [<c067e8ec>] _ZN6Master12check_driverEv+0x0/0x280 [click]

 [<c0672394>] _ZN12RouterThread6driverEv+0x504/0x6f8 [click]

 [<8002e15c>] reparent_to_init+0x214/0x220

 [<c0651f90>] _Znaj+0x40/0x4c [click]

 [<c07cb9a0>] _Z14soft_spin_lockP10spinlock_t+0x0/0xc [click]

 [<8002c6c8>] printk+0x0/0x28

 [<c07cba78>] _Z11click_schedPv+0xcc/0x1d0 [click]

 [<8000b764>] kernel_thread_helper+0x10/0x18

 [<8000b754>] kernel_thread_helper+0x0/0x18

 

scheduling while atomic: kclick/0x802917e8/237

Call Trace:

 [<801e8528>] schedule+0x74/0xb24

 [<c0656c54>] _ZN7Element4pullEi+0x2c/0x58 [click]

 [<c075df1c>] _ZN8ToDevice12queue_packetEP6Packet+0x0/0x2ec [click]

 [<801e84b4>] schedule+0x0/0xb24

 [<c067e8ec>] _ZN6Master12check_driverEv+0x0/0x280 [click]

 [<801e9e58>] schedule_timeout+0x9c/0xd4

 [<c075df1c>] _ZN8ToDevice12queue_packetEP6Packet+0x0/0x2ec [click]

 [<c075db90>] _ZN8ToDevice8run_taskEv+0x180/0x50c [click]

 [<c075dab4>] _ZN8ToDevice8run_taskEv+0xa4/0x50c [click]

 [<80037fc8>] process_timeout+0x0/0x1c

 [<c07cb9a0>] _Z14soft_spin_lockP10spinlock_t+0x0/0xc [click]

 [<c0672458>] _ZN12RouterThread6driverEv+0x5c8/0x6f8 [click]

 [<8002e15c>] reparent_to_init+0x214/0x220

 [<c0651f90>] _Znaj+0x40/0x4c [click]

 [<c07cb9a0>] _Z14soft_spin_lockP10spinlock_t+0x0/0xc [click]

 [<8002c6c8>] printk+0x0/0x28

 [<c07cba78>] _Z11click_schedPv+0xcc/0x1d0 [click]

 [<8000b764>] kernel_thread_helper+0x10/0x18

 [<8000b754>] kernel_thread_helper+0x0/0x18

 

scheduling while atomic: kclick/0x802917e8/237

Call Trace:

 [<801e8528>] schedule+0x74/0xb24

 [<c0656c54>] _ZN7Element4pullEi+0x2c/0x58 [click]

 [<c075db90>] _ZN8ToDevice8run_taskEv+0x180/0x50c [click]

 [<c075dab4>] _ZN8ToDevice8run_taskEv+0xa4/0x50c [click]

 [<c07cb9a0>] _Z14soft_spin_lockP10spinlock_t+0x0/0xc [click]

 [<801e84b4>] schedule+0x0/0xb24

 [<c067e8ec>] _ZN6Master12check_driverEv+0x0/0x280 [click]

 [<c0672394>] _ZN12RouterThread6driverEv+0x504/0x6f8 [click]

 [<8002e15c>] reparent_to_init+0x214/0x220

 [<c0651f90>] _Znaj+0x40/0x4c [click]

 [<c07cb9a0>] _Z14soft_spin_lockP10spinlock_t+0x0/0xc [click]

 [<8002c6c8>] printk+0x0/0x28

 [<c07cba78>] _Z11click_schedPv+0xcc/0x1d0 [click]

 [<8000b764>] kernel_thread_helper+0x10/0x18

 [<8000b754>] kernel_thread_helper+0x0/0x18

 

scheduling while atomic: kclick/0x802917e8/237

Call Trace:

 [<801e8528>] schedule+0x74/0xb24

 [<c067ec20>] _ZN6Master15process_pendingEP12RouterThread+0xb4/0xd8
[click]

 [<c07cb9a0>] _Z14soft_spin_lockP10spinlock_t+0x0/0xc [click]

 [<801e84b4>] schedule+0x0/0xb24

 [<c067e8ec>] _ZN6Master12check_driverEv+0x0/0x280 [click]

 [<c0672394>] _ZN12RouterThread6driverEv+0x504/0x6f8 [click]

 [<8002e15c>] reparent_to_init+0x214/0x220

 [<c0651f90>] _Znaj+0x40/0x4c [click]

 [<c07cb9a0>] _Z14soft_spin_lockP10spinlock_t+0x0/0xc [click]

 [<8002c6c8>] printk+0x0/0x28

 [<c07cba78>] _Z11click_schedPv+0xcc/0x1d0 [click]

 [<8000b764>] kernel_thread_helper+0x10/0x18

 [<8000b754>] kernel_thread_helper+0x0/0x18

 

scheduling while atomic: kclick/0x802917e8/237

Call Trace:

 [<801e8528>] schedule+0x74/0xb24

 [<c067ec20>] _ZN6Master15process_pendingEP12RouterThread+0xb4/0xd8
[click]

 [<c07cb9a0>] _Z14soft_spin_lockP10spinlock_t+0x0/0xc [click]

 [<801e84b4>] schedule+0x0/0xb24

 [<c067e8ec>] _ZN6Master12check_driverEv+0x0/0x280 [click]

 [<c0672394>] _ZN12RouterThread6driverEv+0x504/0x6f8 [click]

 [<8002e15c>] reparent_to_init+0x214/0x220

 [<c0651f90>] _Znaj+0x40/0x4c [click]

 [<c07cb9a0>] _Z14soft_spin_lockP10spinlock_t+0x0/0xc [click]

 [<8002c6c8>] printk+0x0/0x28

 [<c07cba78>] _Z11click_schedPv+0xcc/0x1d0 [click]

 [<8000b764>] kernel_thread_helper+0x10/0x18

 [<8000b754>] kernel_thread_helper+0x0/0x18

 

scheduling while atomic: kclick/0x802917e8/237

Call Trace:

 [<801e8528>] schedule+0x74/0xb24

 [<c067ec20>] _ZN6Master15process_pendingEP12RouterThread+0xb4/0xd8
[click]

 [<c07cb9a0>] _Z14soft_spin_lockP10spinlock_t+0x0/0xc [click]

 [<801e84b4>] schedule+0x0/0xb24

 [<c067e8ec>] _ZN6Master12check_driverEv+0x0/0x280 [click]

 [<c0672394>] _ZN12RouterThread6driverEv+0x504/0x6f8 [click]

 [<8002e15c>] reparent_to_init+0x214/0x220

 [<c0651f90>] _Znaj+0x40/0x4c [click]

 [<c07cb9a0>] _Z14soft_spin_lockP10spinlock_t+0x0/0xc [click]

 [<8002c6c8>] printk+0x0/0x28

 [<c07cba78>] _Z11click_schedPv+0xcc/0x1d0 [click]

 [<8000b764>] kernel_thread_helper+0x10/0x18

 [<8000b754>] kernel_thread_helper+0x0/0x18

 

scheduling while atomic: kclick/0x802917e8/237

Call Trace:

 [<801e8528>] schedule+0x74/0xb24

 [<c067ec20>] _ZN6Master15process_pendingEP12RouterThread+0xb4/0xd8
[click]

 [<c07cb9a0>] _Z14soft_spin_lockP10spinlock_t+0x0/0xc [click]

 [<801e84b4>] schedule+0x0/0xb24

 [<c067e8ec>] _ZN6Master12check_driverEv+0x0/0x280 [click]

 [<c0672394>] _ZN12RouterThread6driverEv+0x504/0x6f8 [click]

 [<8002e15c>] reparent_to_init+0x214/0x220

 [<c0651f90>] _Znaj+0x40/0x4c [click]

 [<c07cb9a0>] _Z14soft_spin_lockP10spinlock_t+0x0/0xc [click]

 [<8002c6c8>] printk+0x0/0x28

 [<c07cba78>] _Z11click_schedPv+0xcc/0x1d0 [click]

 [<8000b764>] kernel_thread_helper+0x10/0x18

 [<8000b754>] kernel_thread_helper+0x0/0x18

 

chatter: WARN 1156955301.270806 (MeshNode/dsr/querier,00:0F:B5:97:33:D1)
too many packets for host 00:0F:B5:3F:1B:BF; killing

scheduling while atomic: kclick/0x802917e8/237

Call Trace:

 [<801e8528>] schedule+0x74/0xb24

 [<c067ec20>] _ZN6Master15process_pendingEP12RouterThread+0xb4/0xd8
[click]

 [<c07cb9a0>] _Z14soft_spin_lockP10spinlock_t+0x0/0xc [click]

 [<801e84b4>] schedule+0x0/0xb24

 [<c067e8ec>] _ZN6Master12check_driverEv+0x0/0x280 [click]

 [<c0672394>] _ZN12RouterThread6driverEv+0x504/0x6f8 [click]

 [<8002e15c>] reparent_to_init+0x214/0x220

 [<c0651f90>] _Znaj+0x40/0x4c [click]

 [<c07cb9a0>] _Z14soft_spin_lockP10spinlock_t+0x0/0xc [click]

 [<8002c6c8>] printk+0x0/0x28

 [<c07cba78>] _Z11click_schedPv+0xcc/0x1d0 [click]

 [<8000b764>] kernel_thread_helper+0x10/0x18

 [<8000b754>] kernel_thread_helper+0x0/0x18

 

scheduling while atomic: kclick/0x802917e8/237

Call Trace:

 [<801e8528>] schedule+0x74/0xb24

 [<c067ec20>] _ZN6Master15process_pendingEP12RouterThread+0xb4/0xd8
[click]

 [<c07cb9a0>] _Z14soft_spin_lockP10spinlock_t+0x0/0xc [click]

 [<801e84b4>] schedule+0x0/0xb24

 [<c067e8ec>] _ZN6Master12check_driverEv+0x0/0x280 [click]

 [<c0672394>] _ZN12RouterThread6driverEv+0x504/0x6f8 [click]

 [<8002e15c>] reparent_to_init+0x214/0x220

 [<c0651f90>] _Znaj+0x40/0x4c [click]

 [<c07cb9a0>] _Z14soft_spin_lockP10spinlock_t+0x0/0xc [click]

 [<8002c6c8>] printk+0x0/0x28

 [<c07cba78>] _Z11click_schedPv+0xcc/0x1d0 [click]

 [<8000b764>] kernel_thread_helper+0x10/0x18

 [<8000b754>] kernel_thread_helper+0x0/0x18