[ltt-dev] latest LTTng on 64bit RHEL

[Martin Kosina]

Hi guys,

Are there any known issues with running LTTng on em64t, specifically on
RHEL5 ? The traces run normally, but are basically empty, just a single
"unknown process" and just a bunch of "MODE_UNKNOWN" messages in the Event
Viewer and no timelines.

Kernel is a 2.6.30.9 (built from git://
git.kernel.org/pub/scm/linux/kernel/git/compudj/linux-2.6-lttng.git on the
traced  host), latest ltt-control, and lttv from git. Traces built from the
same sources on ia32 are working fine there. (The GUI is running on a 32-bit
box mounting the other machine's /tmp, FWIW).

Thanks,
Martin


P.S. It all looks pretty normal when arming/running/stopping:

[mkosina at metersim04 lttv]$ sudo /usr/local/bin/ltt-armall
Connecting all markers
Connecting /mnt/debugfs/ltt/markers/input/input_event
Connecting /mnt/debugfs/ltt/markers/irq_state/idt_table
Connecting /mnt/debugfs/ltt/markers/module_state/list_module
Connecting /mnt/debugfs/ltt/markers/softirq_state/softirq_vec
Connecting /mnt/debugfs/ltt/markers/swap_state/statedump_swap_files
Connecting /mnt/debugfs/ltt/markers/syscall_state/sys_call_table

[mkosina at metersim04 lttv]$ sudo /usr/local/bin/lttctl -C --channel_root
/mnt/debugfs/ltt -w /tmp/trace1 -o channel.all.overwrite=0 -n 1 trace

Linux Trace Toolkit Trace Control 0.71-30092009

Controlling trace : trace

lttctl: Creating trace
lttctl: Forking lttd
Linux Trace Toolkit Trace Daemon 0.71-30092009

Reading from debugfs directory : /mnt/debugfs/ltt/trace
Writing to trace directory : /tmp/trace1

[mkosina at metersim04 lttv]$ sudo /usr/local/bin/lttctl -D trace
Linux Trace Toolkit Trace Control 0.71-30092009

Controlling trace : trace

lttctl: Pausing trace
lttctl: Destroying trace
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