[ltt-dev] Assertion Fail

Sachin Desai sachin.desai at gmail.com
Tue Jan 5 20:28:38 EST 2010


Hi Mathieu,

I need troubleshooting the problem with an ltt_event_facility()
assertion crash. I am running the following:

lttv: 0.8.84
lttctl:  0.42
lttng: 0.9.10
lnx: 2.6.22-rc4-mm2

I patched the mm tree, compiled and successfully ran it on a PowerMac
7447A ppc platform. Everything so far has been "out of the box". I
succesfully loaded the modules, installed lttctl and lttv (gui as
well). I verified the .xml files under /usr/.../.../facilities are the
correct ones. I do not have any custom facilities.

I have spend many days poring thru code, reading the mail archives and
attempting numerous "fixes". Can you please point me in the right
direction?

Below, I have pasted the crash output.

Thanks,

Sachin

lttv -m textDump -t /tmp/trace:
-------------------------------------------------------------------------------
** (process:24668): WARNING **: Unknown facility 145 (0x91) in
tracefile /control/interrupts

** (process:24668): WARNING **: Unknown facility 145 (0x91) in
tracefile /control/modules

** (process:24668): WARNING **: Unknown facility 145 (0x91) in
tracefile /control/network

** (process:24668): WARNING **: Unknown facility 211 (0xd3) in
tracefile /control/processes

** (process:24668): WARNING **: Unknown facility 211 (0xd3) in tracefile /cpu

** ERROR:(event.c:88):ltt_event_facility: assertion failed: (facility->exists)
/usr/local/bin/lttv: line 15: 24668 Aborted                 $0.real $*

lsmod:
----------
ltt_statedump           8616  0
ltt_probe_fs            5248  0
ltt_probe_list          3616  0
ltt_probe_net           3616  0
ltt_probe_kernel        6176  0
ltt_probe_mm            3584  0
ltt_control             3204  0

dmesg:
-----------
ltt-control init
LTT : Facility mm registered with id 59
LTT : Facility kernel registered with id 211
LTT : Facility net registered with id 179
LTT : Facility list registered with id 145
LTT : Facility fs registered with id 225
LTT : ltt-facility-statedump init
ltt-control ltt_control_input
ltt_control : trace trace
Creating trace trace
ltt-control ltt_control_input
ltt_control : trace trace
Start tracing trace
Dumping facility mm
Dumping facility list
Dumping facility net
Dumping facility kernel
Dumping facility fs
ltt_statedump_start
do_ltt_statedump
do_ltt_statedump end
ltt-control ltt_control_input
ltt_control : trace trace
Stop tracing trace
ltt-control ltt_control_input
ltt_control : trace trace
Destroying trace trace
ISO 9660 Extensions: RRIP_1991A
ltt-control ltt_control_input
ltt_control : trace trace
Creating trace trace
ltt-control ltt_control_input
ltt_control : trace trace




More information about the lttng-dev mailing list