On Tue, Oct 1, 2013 at 3:16 AM, Guenter Roeck <li...@roeck-us.net> wrote: > On 09/30/2013 03:29 PM, Brian Gitonga Marete wrote: >> >> On Tue, Oct 1, 2013 at 12:25 AM, Brian Gitonga Marete >> <mar...@toshnix.com> wrote: >>> >>> Hello all, >>> >>> Some time ago, an enhancement was made to the kernel that caused >>> coretemp.ko (as well as other cpu-specific drivers) to be auto-loaded. >>> >>> This has broken for me in 3.11.x. It works fine on 3.10.x. >>> >>> Please see the attached kernel config and let me know if I left out >>> something notwithstanding doing a `sillentoldconfig' from my 3.10.x >>> config, which does not exhibit the problem. >>> >> >> Some further information which upon some research, may be useful: >> >> Kernel is 3.11.2 (But misbehavior first seen with 3.11.0) >> >> $ cat /sys/devices/system/cpu/modalias >> >> x86cpu:vendor:0000:family:0006:model:0025:feature:,0000,0001,0002,0003,0004,0005,0006,0007,0008,0009,000B,000C,000D,000E,000F,0010,0011,0013,0015,0016,0017,0018,0019,001A,001B,001C,001D,001F,002B,0034,003B,003D,0068,006B,006C,006D,006F,0070,0072,0074,0075,0076,0078,007C,0080,0082,0083,0084,0085,0087,0088,0089,008D,008E,008F,0091,0093,0094,0097,00C0,00E0,00E1,00E7,0100,0101,0102,0103,0104 >> >> $ modinfo coretemp >> filename: /lib/modules/3.11.2/kernel/drivers/hwmon/coretemp.ko >> license: GPL >> description: Intel Core temperature monitor >> author: Rudolf Marek <r.ma...@assembler.cz> >> srcversion: 31B63A96FD9FD13CDDBDF32 >> alias: x86cpu:vendor:0000:family:*:model:*:feature:*00E7* >> depends: >> intree: Y >> vermagic: 3.11.2 SMP mod_unload modversions >> parm: tjmax:TjMax value in degrees Celsius (int) >> >> I have UDEV 175 from Ubuntu 12.04. >> >> The module alias seems to match that in cat >> /sys/devices/system/cpu/modalias, so udev should be able to probe for >> and load coretemp.ko, but that is not happening, which is strange to >> me. >> >> I also note that microcode.ko, which is handled by the same mechanism >> for auto-loading based on CPUID, is no longer auto-loaded in kernel >> 3.11.x. >> >> I have added Thomas Renninger and Greg Kroah-Hartman to the thread CC. >> > > See > > http://lists.lm-sensors.org/pipermail/lm-sensors/2013-August/039745.html > > and > > http://lists.opensuse.org/opensuse-bugs/2013-08/msg01676.html > > as well as > > http://cgit.freedesktop.org/systemd/systemd/commit?id=bf7f800f2b3e93ccd1229d4717166f3a4d3af72f > > In summary, you'll need a new udev rule. > > Guenter >
Ah, that makes perfect sense. Thanks, Guenter. -- Brian Gitonga Marete CEO/CTO Toshnix Systems http://toshnix.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/