Caz,
Using your gdb-6.8-kgdblight and 2.6.27 I'm having some single-stepping
problems that I didn't have with my pervious gdb-6.8 with kgdb-2.6.23.
I was able to set a breakpoint just fine. The breakpoint hit.
Then I wanted to step through the program but when I try I have
issues. It seems like 'next' is acting just like 'step'.. And
'fin' just doesn't work at all. The "Unknown error" looks suspiciously
like "(signed long)-1" -- I'm working on a 32-bit Host with a 32-bit
target.
Below is the gdb info...
-derek
(gdb) c
Continuing.
[Switching to Thread 1028]
Breakpoint 2, mydriver_do_requests (q=0xde0857e8)
at my-driver.c:699
699 {
(gdb) n
701 struct mydriver_config *cfg = q->queuedata;
(gdb)
704 ENTER("%p", q);
(gdb)
701 struct mydriver_config *cfg = q->queuedata;
(gdb)
704 ENTER("%p", q);
(gdb)
printk (fmt=0x14cc2 <Address 0x14cc2 out of bounds>) at kernel/printk.c:599
599 {
(gdb) n
604 r = vprintk(fmt, args);
(gdb)
vprintk (fmt=0x8957e589 <Address 0x8957e589 out of bounds>,
args=0x80be56c7 <Address 0x80be56c7 out of bounds>) at kernel/printk.c:666
666 {
(gdb)
vprintk (fmt=0xe09bfc23 "<6>ENTER[%p]: %s() %p\n", args=0xde54ebd4 "")
at kernel/printk.c:210
210 if (boot_delay == 0 || system_state != SYSTEM_BOOTING)
(gdb)
668 int current_log_level = default_message_loglevel;
(gdb) fin
Run till exit from #0 vprintk (fmt=0xe09bfc23 "<6>ENTER[%p]: %s() %p\n",
args=0xde54ebd4 "") at kernel/printk.c:668
Warning:
Cannot insert breakpoint 0.
Error accessing memory address 0xc06409b5: Unknown error 4294967295.
--
Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory
Member, MIT Student Information Processing Board (SIPB)
URL: http://web.mit.edu/warlord/ PP-ASEL-IA N1NWH
[email protected] PGP key available
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