mdb: failed to add breakpoint: operation not supported by target This has been bugging me all morning:
[console] root@burr ( e2:64 ) > mdb -kw
Loading modules: [ unix genunix specfs dtrace cpu.AuthenticAMD.15 uppc pcplusmp scsi_vhci ufs mpt ip hook neti sctp arp usba qlc fctl nca lofs zfs random fcp nfs cpc ptm sppp ]
> nfs4_trigger_mount:b
mdb: failed to add breakpoint: operation not supported by target
> :c
mdb: failed to continue target: operation not supported by target
> $q
The first thing I did was search on google and no luck on finding a solution. Other people had asked
for help on it, but not directly. I decided to set the system to boot up in kmdb (see eeprom hosed on an x86) and no luck either.
Okay, my next step was to make sure that I was really, really dropping to the kernel. I was
suspicious that I wasn't getting there since '$q' was not attempting to reboot the box. In this case,
the escape character was: '^]'.
[console] root@burr ( e2:64 ) >
telnet> send brk
Welcome to kmdb
kmdb: unable to determine terminal type: assuming `vt100'
Loaded modules: [ scsi_vhci crypto cpc uppc i hook lofs genunix ip logindmux usba specfs pcplusmp md nfs
random sctp arp cpu.AuthenticAMD.15 ]
[3]> nfs4_trigger_mount:b
[3]> :c
And we have liftoff!
