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authorVadim Kochan <vadim4j@gmail.com>2015-05-03 11:14:07 +0300
committerTobias Klauser <tklauser@distanz.ch>2015-05-04 09:45:09 +0200
commit47fb4f6219e6936fd99d28a1e43135544d10b4ff (patch)
treeb7fcee4cfd3c1e6f4bb1699fdb3a951959827523 /Misc
parentaa6b0e3ae806029e803709bfaf9938ae5b1b785f (diff)
trafgen: Delete rfmon mac80211 device on panic
Fixed case when rfmon mac80211 created device remains after trafgen failed (for ex. - incorrect cfg file), so just delete it when panic occured. Also made panic handlers invoking per process and only once. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Diffstat (limited to 'Misc')
0 files changed, 0 insertions, 0 deletions
HWP mode, even if running under sustained 100% utilization. This occurs when the HWP.EPP (Energy Performance Preference) is set to "balance_power" (0x80) -- the default on most systems. It occurs because the platform BIOS may erroneously enable an energy-efficiency setting -- MSR_IA32_POWER_CTL BIT-EE, which is not recommended to be enabled on this SKU. On the failing systems, this BIOS issue was not discovered when the desktop motherboard was tested with Windows, because the BIOS also neglects to provide the ACPI/CPPC table, that Windows requires to enable HWP, and so Windows runs in legacy P-state mode, where this setting has no effect. Linux' intel_pstate driver does not require ACPI/CPPC to enable HWP, and so it runs in HWP mode, exposing this incorrect BIOS configuration. There are several ways to address this problem. First, Linux can also run in legacy P-state mode on this system. As intel_pstate is how Linux enables HWP, booting with "intel_pstate=disable" will run in acpi-cpufreq/ondemand legacy p-state mode. Or second, the "performance" governor can be used with intel_pstate, which will modify HWP.EPP to 0. Or third, starting in 4.10, the /sys/devices/system/cpu/cpufreq/policy*/energy_performance_preference attribute in can be updated from "balance_power" to "performance". Or fourth, apply this patch, which fixes the erroneous setting of MSR_IA32_POWER_CTL BIT_EE on this model, allowing the default configuration to function as designed. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Reviewed-by: Len Brown <len.brown@intel.com> Cc: 4.6+ <stable@vger.kernel.org> # 4.6+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'net/batman-adv/packet.h')