Date: Tue, 14 Aug 2012 06:38:30 GMT From: Max Johnson <adscomplex@gmail.com> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/170627: Kernel memomry leak when polling cpu temperature via coretemp kernel module. Message-ID: <201208140638.q7E6cUoO030666@red.freebsd.org> Resent-Message-ID: <201208140640.q7E6eADZ072594@freefall.freebsd.org>
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>Number: 170627 >Category: kern >Synopsis: Kernel memomry leak when polling cpu temperature via coretemp kernel module. >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Aug 14 06:40:10 UTC 2012 >Closed-Date: >Last-Modified: >Originator: Max Johnson >Release: 9.0 >Organization: >Environment: FreeBSD devel.host 9.0-RELEASE-p3 FreeBSD 9.0-RELEASE-p3 #0: Tue Jun 12 02:52:29 UTC 2012 root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64 >Description: coretemp kernel module is loaded by: kldload coretemp every minute sysctl counters is polled by stats scripts and stored id rrd's. active memory usage always growing and after 15-20 days we have a kernel panic. Additional information: Aug 2 15:58:22 devel kernel: CPU: Intel(R) Xeon(R) CPU X3230 @ 2.66GHz (2660.05-MHz K8-class CPU) Aug 2 15:58:22 devel kernel: Origin = "GenuineIntel" Id = 0x6fb Family = 6 Model = f Stepping = 11 Aug 2 15:58:22 devel kernel: Features=0xbfebfbff<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,HTT,TM,PBE> Aug 2 15:58:22 devel kernel: Features2=0xe3bd<SSE3,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM> Aug 2 15:58:22 devel kernel: AMD Features=0x20100800<SYSCALL,NX,LM> Aug 2 15:58:22 devel kernel: AMD Features2=0x1<LAHF> Aug 2 15:58:22 devel kernel: TSC: P-state invariant, performance statistics Aug 2 15:58:22 devel kernel: real memory = 8589934592 (8192 MB) Aug 2 15:58:22 devel kernel: avail memory = 8245788672 (7863 MB) ..... Aug 2 15:58:34 devel kernel: coretemp0: <CPU On-Die Thermal Sensors> on cpu0 Aug 2 15:58:34 devel kernel: est0: <Enhanced SpeedStep Frequency Control> on cpu0 Aug 2 15:58:34 devel kernel: est: CPU supports Enhanced Speedstep, but is not recognized. Aug 2 15:58:34 devel kernel: est: cpu_vendor GenuineIntel, msr a230a2306000a23 Aug 2 15:58:34 devel kernel: device_attach: est0 attach returned 6 Aug 2 15:58:34 devel kernel: coretemp1: <CPU On-Die Thermal Sensors> on cpu1 Aug 2 15:58:34 devel kernel: est1: <Enhanced SpeedStep Frequency Control> on cpu1 Aug 2 15:58:34 devel kernel: est: CPU supports Enhanced Speedstep, but is not recognized. Aug 2 15:58:34 devel kernel: est: cpu_vendor GenuineIntel, msr a230a2306000a23 Aug 2 15:58:34 devel kernel: device_attach: est1 attach returned 6 Aug 2 15:58:34 devel kernel: coretemp2: <CPU On-Die Thermal Sensors> on cpu2 Aug 2 15:58:34 devel kernel: est2: <Enhanced SpeedStep Frequency Control> on cpu2 Aug 2 15:58:34 devel kernel: est: CPU supports Enhanced Speedstep, but is not recognized. Aug 2 15:58:34 devel kernel: est: cpu_vendor GenuineIntel, msr a230a2306000a23 Aug 2 15:58:34 devel kernel: device_attach: est2 attach returned 6 Aug 2 15:58:34 devel kernel: coretemp3: <CPU On-Die Thermal Sensors> on cpu3 Aug 2 15:58:34 devel kernel: est3: <Enhanced SpeedStep Frequency Control> on cpu3 Aug 2 15:58:34 devel kernel: est: CPU supports Enhanced Speedstep, but is not recognized. Aug 2 15:58:34 devel kernel: est: cpu_vendor GenuineIntel, msr a230a2306000a23 Aug 2 15:58:34 devel kernel: device_attach: est3 attach returned 6 >How-To-Repeat: Just load coretemp module and pool actively (every few seconds) a temperature counters. Active memory will grow slowly. >Fix: Do not load and use coretemp module. >Release-Note: >Audit-Trail: >Unformatted:
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