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Bug #844

closed

lttng-sessiond error on syscall list when unable to load kernel tracer

Added by Mathieu Desnoyers over 10 years ago. Updated over 10 years ago.

Status:
Resolved
Priority:
Normal
Assignee:
David Goulet
Target version:
-
Start date:
10/01/2014
Due date:
% Done:

100%

Estimated time:

Description

We should have a check for the file descriptor being set or not, rather than
hitting a EBADF.

modprobe: FATAL: Module lttng-tracer not found.
Error: Unable to load required module lttng-tracer
Error: Unable to remove module lttng-ring-buffer-metadata-mmap-client
Error: Unable to remove module lttng-ring-buffer-client-mmap-overwrite
Error: Unable to remove module lttng-ring-buffer-client-mmap-discard
Error: Unable to remove module lttng-ring-buffer-metadata-client
Error: Unable to remove module lttng-ring-buffer-client-overwrite
Error: Unable to remove module lttng-ring-buffer-client-discard
Error: Unable to remove module lttng-lib-ring-buffer
Error: Unable to remove module lttng-tracer
Warning: No kernel tracer available
PERROR - 11:17:37.654597 [4836/4836]: kernelctl syscall list: Bad file descriptor (in syscall_init_table() at syscall.c:55)
Error: Unable to populate syscall table. Syscall tracing won't work for this session daemon.
^CError: Unable to remove module lttng-ring-buffer-metadata-mmap-client
Error: Unable to remove module lttng-ring-buffer-client-mmap-overwrite
Error: Unable to remove module lttng-ring-buffer-client-mmap-discard
Error: Unable to remove module lttng-ring-buffer-metadata-client
Error: Unable to remove module lttng-ring-buffer-client-overwrite
Error: Unable to remove module lttng-ring-buffer-client-discard
Error: Unable to remove module lttng-lib-ring-buffer
Error: Unable to remove module lttng-tracer

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