Description of problem: kernel warnings during boot: WARNING: at kernel/trace/ftrace.c:1003 ftrace_bug+0x198/0x27e() (Not tainted) Hardware name: 6464CTO Modules linked in: output(+) Pid: 106, comm: modprobe Not tainted 2.6.31-12.fc12.x86_64 #1 Call Trace: [<ffffffff81064244>] warn_slowpath_common+0x95/0xc3 [<ffffffffa0000193>] ? video_output_register+0x11/0x10a [output] [<ffffffff81064299>] warn_slowpath_null+0x27/0x3d [<ffffffff810d4a0e>] ftrace_bug+0x198/0x27e [<ffffffffa0000193>] ? video_output_register+0x11/0x10a [output] [<ffffffff810d5c66>] ftrace_convert_nops+0x201/0x2b9 [<ffffffffa0000193>] ? video_output_register+0x11/0x10a [output] [<ffffffff810d5d6a>] ftrace_module_notify+0x4c/0x7f [<ffffffff815099a5>] notifier_call_chain+0x72/0xba [<ffffffff81086db1>] ? __blocking_notifier_call_chain+0x4c/0x8e [<ffffffff81086dc8>] __blocking_notifier_call_chain+0x63/0x8e [<ffffffff81086e1a>] blocking_notifier_call_chain+0x27/0x3d [<ffffffff810a466a>] sys_init_module+0xb7/0x249 [<ffffffff81011f42>] system_call_fastpath+0x16/0x1b ftrace faulted on writing [<ffffffffa0000193>] video_output_register+0x11/0x10a [output] Version-Release number of selected component (if applicable): kernel-2.6.31-12.fc12.x86_64 x86_64, Lenovo T61, 4GB, C2D, up-to-date fedora rawhide 2009-09-16 How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info:
I'm seeing this too on Lenove X200 with -12.fc2.x86_64: usb 4-1: configuration #1 chosen from 1 choice udev: starting version 145 usb 1-5.2: new full speed USB device using ehci_hcd and address 4 ------------[ cut here ]------------ WARNING: at kernel/trace/ftrace.c:1003 ftrace_bug+0x198/0x27e() (Not tainted) Hardware name: 74585FU Modules linked in: output(+) Pid: 112, comm: modprobe Not tainted 2.6.31-33.fc12.x86_64 #1 Call Trace: [<ffffffff810642ec>] warn_slowpath_common+0x95/0xc3 [<ffffffffa0000193>] ? video_output_register+0x11/0x10a [output] [<ffffffff81064341>] warn_slowpath_null+0x27/0x3d [<ffffffff810d4ace>] ftrace_bug+0x198/0x27e [<ffffffffa0000193>] ? video_output_register+0x11/0x10a [output] [<ffffffff810d5d26>] ftrace_convert_nops+0x201/0x2b9 [<ffffffffa0000193>] ? video_output_register+0x11/0x10a [output] [<ffffffff810d5e2a>] ftrace_module_notify+0x4c/0x7f [<ffffffff81509c65>] notifier_call_chain+0x72/0xba [<ffffffff81086e71>] ? __blocking_notifier_call_chain+0x4c/0x8e [<ffffffff81086e88>] __blocking_notifier_call_chain+0x63/0x8e [<ffffffff81086eda>] blocking_notifier_call_chain+0x27/0x3d [<ffffffff810a472a>] sys_init_module+0xb7/0x249 [<ffffffff81011f42>] system_call_fastpath+0x16/0x1b ---[ end trace e7e7dc056f6936b1 ]--- ftrace faulted on writing [<ffffffffa0000193>] video_output_register+0x11/0x10a [output] [drm] Initialized drm 1.1.0 20060810 usb 1-5.2: New USB device found, idVendor=067b, idProduct=2305 usb 1-5.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 usb 1-5.2: Product: IEEE-1284 Controller
Now that I've noticed mine isn't in video_output_register, but in i2c_new_dummy WARNING: at kernel/trace/ftrace.c:1003 ftrace_bug+0x198/0x27e() (Not tainted) Hardware name: GA-MA78GM-S2H Modules linked in: i2c_core(+) Pid: 130, comm: modprobe Not tainted 2.6.31-33.fc12.x86_64 #1 Call Trace: [<ffffffff810642ec>] warn_slowpath_common+0x95/0xc3 [<ffffffffa0003072>] ? i2c_new_dummy+0x8/0x5e [i2c_core] [<ffffffff81064341>] warn_slowpath_null+0x27/0x3d [<ffffffff810d4ace>] ftrace_bug+0x198/0x27e [<ffffffffa0003072>] ? i2c_new_dummy+0x8/0x5e [i2c_core] [<ffffffff810d5d26>] ftrace_convert_nops+0x201/0x2b9 [<ffffffffa0003072>] ? i2c_new_dummy+0x8/0x5e [i2c_core] [<ffffffff810d5e2a>] ftrace_module_notify+0x4c/0x7f [<ffffffff81509c65>] notifier_call_chain+0x72/0xba [<ffffffff81086e71>] ? __blocking_notifier_call_chain+0x4c/0x8e [<ffffffff81086e88>] __blocking_notifier_call_chain+0x63/0x8e [<ffffffff81086eda>] blocking_notifier_call_chain+0x27/0x3d [<ffffffff810a472a>] sys_init_module+0xb7/0x249 [<ffffffff81011f42>] system_call_fastpath+0x16/0x1b ---[ end trace 62bfd67a45008312 ]--- ftrace faulted on writing [<ffffffffa0003072>] i2c_new_dummy+0x8/0x5e [i2c_core]
Another: Dell Inspiron 6400 WARNING: at kernel/trace/ftrace.c:1003 ftrace_bug+0x198/0x27e() (Not tainted) Hardware name: MM061 Modules linked in: output(+) Pid: 94, comm: modprobe Not tainted 2.6.31-33.fc12.x86_64 #1 Call Trace: [<ffffffff810642ec>] warn_slowpath_common+0x95/0xc3 [<ffffffffa0000193>] ? video_output_register+0x11/0x10a [output] [<ffffffff81064341>] warn_slowpath_null+0x27/0x3d [<ffffffff810d4ace>] ftrace_bug+0x198/0x27e [<ffffffffa0000193>] ? video_output_register+0x11/0x10a [output] [<ffffffff810d5d26>] ftrace_convert_nops+0x201/0x2b9 [<ffffffffa0000193>] ? video_output_register+0x11/0x10a [output] [<ffffffff810d5e2a>] ftrace_module_notify+0x4c/0x7f [<ffffffff81509c65>] notifier_call_chain+0x72/0xba [<ffffffff81086e71>] ? __blocking_notifier_call_chain+0x4c/0x8e [<ffffffff81086e88>] __blocking_notifier_call_chain+0x63/0x8e [<ffffffff81086eda>] blocking_notifier_call_chain+0x27/0x3d [<ffffffff810a472a>] sys_init_module+0xb7/0x249 [<ffffffff81011f42>] system_call_fastpath+0x16/0x1b ---[ end trace c78f3c300c17b940 ]--- ftrace faulted on writing [<ffffffffa0000193>] video_output_register+0x11/0x10a [output] 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)
*** Bug 524890 has been marked as a duplicate of this bug. ***
*** Bug 525466 has been marked as a duplicate of this bug. ***
This seems fixed with the upgrade to kernel Linux version 2.6.31.1-48.fc12.x86_64 (mockbuild.phx.redhat.com) (gcc version 4.4.1 20090923 (Red Hat 4.4.1-16) (GCC) ) #1 SMP Fri Sep 25 16:57:40 EDT 2009
*** Bug 524042 has been marked as a duplicate of this bug. ***