From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2.1) Gecko/20030225 Description of problem: Message appearing during boot: Applying Intel IA32 Microcode update: modprobe: modprobe: Can't locate module char-major-10-184 [ OK ] When I do "/etc/init.d/microcode_ctl restart" then I see: Applying Intel IA32 Microcode update: [ OK ] But, in /var/log/messages I still see: Dec 14 13:08:49 localhost modprobe: modprobe: Can't locate module char-major-10-184 Dec 14 13:08:49 localhost microcode_ctl: microcode_ctl startup succeeded Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. Take an old i586, and blow off the dust. 2. Start the installation with a bootdisk.img diskette. 3. Enter "linux isa text expert reboot=bios" at the boot:-prompt. 4. Select only "text based internet" on the packages selection. 5. Stare at the boot messages. 6. /etc/init.d/microcode_ctl restart 7. Look at /var/log/messages. Actual Results: Message "modprobe: Can't locate module char-major-10-184" appearing. Expected Results: Message "modprobe: Can't locate module char-major-10-184" not appearing. Additional info: Importance unknown. No loss of function seen. Not known whether the microcode update succeeded or not. No workaround known.
I see this as well, on booting a Dell OpiPlex XL 590, and can also reproduce it by restarting microcode_ctl: [root@louisa root]# /etc/init.d/microcode_ctl restart Applying Intel IA32 Microcode update: [ OK ] [root@louisa root]# Jan 12 01:15:50 louisa modprobe: modprobe: Can't locate module char-major-10-184 Jan 12 01:15:50 louisa microcode_ctl: microcode_ctl startup succeeded [root@louisa root]# cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 5 model : 2 model name : Pentium 75 - 200 stepping : 5 cpu MHz : 90.029 fdiv_bug : no hlt_bug : no f00f_bug : yes coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr mce cx8 bogomips : 179.40
Also on Pentium 4.(Dell precision) Red Hat 7.2 [root@ip68-9-128-179 log]# date Mon Jan 19 13:25:47 EST 2004 [root@ip68-9-128-179 log]# /etc/init.d/microcode_ctl restart Applying Intel IA32 Microcode update: [ OK ] [root@ip68-9-128-179 log]# tail -2 /var/log/messages Jan 19 13:25:57 ip68-9-128-179 modprobe: modprobe: Can't locate module char-major-10-184 Jan 19 13:25:57 ip68-9-128-179 microcode_ctl: microcode_ctl startup succeeded [root@ip68-9-128-179 log]# cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 1 model name : Intel(R) Pentium(R) 4 CPU 1.70GHz stepping : 2 cpu MHz : 1694.889 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm bogomips : 3381.65
I get this modprobe error sometimes too on my i586, however it at least seems to be intermittent and rare in occurence for me, IA32 Microcode Update normally at least indicates it loads [OK] on boot. [gulo@joker gulo]$ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 5 model : 4 model name : Pentium MMX stepping : 3 cpu MHz : 232.275 fdiv_bug : no hlt_bug : no f00f_bug : yes coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr mce cx8 mmx bogomips : 463.66
RE above comment, modprobe error is no longer intermittent on that machine, says it can't locate the module char-major-10-184 every boot now, this change possibly happened after an up2date.
586 CPU's don't have the microcode feature at all, so microcode_ctl shouldn't be doing anything at all in this situation.
I get his on my toshiba P1 266 notebook at every boot. I'm guessing this is a module dependency or aliasing problem, nothing to do with microcode. Paul
a solution to this problem is to do: chmod 644 /dev/cpu/0/microcode
still a problem in fc3 ?
for rawhide, I've added a check for < 686's that makes microcode_ctl exit immediately.
Seems to work for me in FC3