Hi all,
I am using KGDB on powerpc-440. This is tested on Linux-2.6.27, the following arguments to KGDB showing init_delay of 8250 as shown below:
Target Side :
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Linux/PowerPC load: console=ttyS0 ip=bootp root=/dev/nfs rw kgdb8250=ttyS0,9600 kgdbwait
Finalizing device tree... flat tree at 0x5ad300
kgdb8250: ttyS0 init delayed, use io/mmio/mbase syntax for early init.
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console [ttyS0] enabled
kgdb: Registered I/O driver kgdb8250.
Stops here ->
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Host Side:
(gdb) target remote /dev/ttyS0
Remote debugging using /dev/ttyS0
0xc01a760c in mem_serial_in (p=0xc036e050, offset=<value optimized out>)
at /opt/linux-2.6.29/arch/powerpc/include/asm/io.h:153
153 DEF_MMIO_IN_BE(in_8, 8, lbz);
(gdb) info threads
14 Thread 109 (nfsiod) __switch_to (prev=<value optimized out>, new=0xcf8227f0) at arch/powerpc/kernel/process.c:412
13 Thread 108 (aio/0) __switch_to (prev=<value optimized out>, new=0xcf8227f0) at arch/powerpc/kernel/process.c:412
12 Thread 107 (kswapd0) __switch_to (prev=<value optimized out>, new=0xcf8227f0) at arch/powerpc/kernel/process.c:412
11 Thread 106 (pdflush) __switch_to (prev=<value optimized out>, new=0xcf8227f0) at arch/powerpc/kernel/process.c:412
10 Thread 105 (pdflush) __switch_to (prev=<value optimized out>, new=0xcf8227f0) at arch/powerpc/kernel/process.c:412
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But when I say Continue -> <Got the Error as below >
(gdb) c
Continuing.
warning: Remote failure reply: E22
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Can anybody correct me, where I am going wrong. I am not able to hit KGDB breakpoint. ?
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Regards
Srikanth Krishnakar
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