Description
Team,
Iam trying to install dtrace on RHEL 6.9.. Installed the dependent packages and gone through the installation steps..
Kernal taints at the make load step and reboots the VM..
Can you please help fix this issue..
FYI..
OS log..
May 2 09:47:07 VM-DB-TST-EDB kernel: WARNING: at kernel/trace/ftrace.c:1490 ftrace_bug+0x29b/0x2f0() (Tainted: P -- ------------ )
May 2 09:47:07 VM-DB-TST-EDB kernel: Hardware name: VMware Virtual Platform
May 2 09:47:07 VM-DB-TST-EDB kernel: Modules linked in: dtracedrv(P+)(U) dtrace_kmem(P)(U) autofs4 ipv6 ppdev parport_pc parport microcode vmware_balloon vmxnet3 i2c_p
vscsi pata_acpi ata_generic ata_piix vmwgfx ttm drm_kms_helper drm i2c_core dm_mirror dm_region_hash dm_log dm_mod [last unloaded: speedstep_lib]
May 2 09:47:07 VM-DB-TST-EDB kernel: Pid: 21382, comm: insmod Tainted: P -- ------------ 2.6.32-696.23.1.el6.x86_64 #1
May 2 09:47:07 VM-DB-TST-EDB kernel: Call Trace:
May 2 09:47:07 VM-DB-TST-EDB kernel: [] ? warn_slowpath_common+0x91/0xe0
May 2 09:47:07 VM-DB-TST-EDB kernel: [] ? dtrace_is_xen+0x4/0x9c [dtracedrv]
May 2 09:47:07 VM-DB-TST-EDB kernel: [] ? warn_slowpath_null+0x1a/0x20
May 2 09:47:07 VM-DB-TST-EDB kernel: [] ? ftrace_bug+0x29b/0x2f0
May 2 09:47:07 VM-DB-TST-EDB kernel: [] ? dtrace_is_xen+0x4/0x9c [dtracedrv]
May 2 09:47:07 VM-DB-TST-EDB kernel: [] ? dtrace_is_xen+0x4/0x9c [dtracedrv]
May 2 09:47:07 VM-DB-TST-EDB kernel: [] ? ftrace_process_locs+0x22a/0x360
May 2 09:47:07 VM-DB-TST-EDB kernel: [] ? ftrace_module_notify+0x47/0x50
May 2 09:47:07 VM-DB-TST-EDB kernel: [] ? notifier_call_chain+0x50/0x80
May 2 09:47:07 VM-DB-TST-EDB kernel: [] ? __blocking_notifier_call_chain+0x5a/0x80
May 2 09:47:07 VM-DB-TST-EDB kernel: [] ? blocking_notifier_call_chain+0x16/0x20
May 2 09:47:07 VM-DB-TST-EDB kernel: [] ? sys_init_module+0xaa/0x260
May 2 09:47:07 VM-DB-TST-EDB kernel: [] ? system_call_fastpath+0x2f/0x34
May 2 09:47:07 VM-DB-TST-EDB kernel: ---[ end trace 252f84bda89d4ee8 ]---
May 2 09:47:07 VM-DB-TST-EDB kernel: ftrace failed to modify [] dtrace_is_xen+0x4/0x9c [dtracedrv]
May 2 09:47:07 VM-DB-TST-EDB kernel: actual: e8:a6:7e:ff:ff
Make load:
[root@VM-DB-TST-EDB linux-master]# make load
tools/load.pl
10:45:00 Syncing...
10:45:00 Loading: build-2.6.32-696.23.1.el6.x86_64/driver/dtracedrv.ko
10:45:01 Preparing symbols...
10:45:01 Probes available:
Thanks,
Bharath.