Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752041AbbFMTyJ (ORCPT ); Sat, 13 Jun 2015 15:54:09 -0400 Received: from mail-wi0-f174.google.com ([209.85.212.174]:36620 "EHLO mail-wi0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751180AbbFMTyB (ORCPT ); Sat, 13 Jun 2015 15:54:01 -0400 Message-ID: <1434225237.1752.2.camel@googlemail.com> Subject: lockup when C1E and high-resolution timers enabled From: Christoph Fritz Reply-To: chf.fritz@googlemail.com To: linux-kernel@vger.kernel.org Cc: Thomas Gleixner Date: Sat, 13 Jun 2015 21:53:57 +0200 Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.12.9-1+b1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2863 Lines: 79 Hi, on following computer configuration, I do get hard lockup under heavy IO-Load (using rsync): - CONFIG_HIGH_RES_TIMERS=y - CPU: AMD FX(tm)-8350 Eight-Core Processor (family 0x15 model 0x2) - Motherboard: 'GA-970A-UD3P (rev. 1.0)' AMD 970/SB950 - BIOS: C1E enabled (on 'GA-970A-UD3P' there is no disable option) - Kernels: 4.1.0-rc6, 4.0.x, 3.16.x Tests: - add kernel parameter "idle=halt" -> system runs fine - disable CONFIG_HIGH_RES_TIMERS -> system runs fine - change motherboard and disable C1E -> system runs fine - change CPU to AMD Phenom II X6 Processor -> system runs fine $ cat /sys/devices/system/cpu/modalias cpu:type:x86,ven0002fam0015mod0002: feature:,0000,0001,0002,0003,0004,0005,0006,0007,0008,0009,000B,000C, 000D,000E,000F,0010,0011,0013,0017,0018,0019,001A,001C,0020,0021,0022, 0023,0024,0025,0026,0027,0028,0029,002B,002C,002D,002E,002F,0030,0031, 0034,0036,0037,0038,0039,003A,003B,003D,0064,0068,006E,0070,0071,0074, 0075,0078,007A,007C,0080,0081,0083,0089,008C,008D,0093,0094,0097,0099, 009A,009B,009C,009D,00C0,00C1,00C2,00C3,00C4,00C5,00C6,00C7,00C8,00C9, 00CA,00CB,00CC,00CD,00CF,00D0,00D1,00D3,00D5,00D6,00D7,00D8,00E1,00E2, 00E8,0105,0106,0107,0108,0109,010A,010B,010C,010D,010E,010F,0123 $ cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 21 model : 2 model name : AMD FX(tm)-8350 Eight-Core Processor stepping : 0 microcode : 0x6000832 cpu MHz : 1400.000 cache size : 2048 KB physical id : 0 siblings : 8 core id : 0 cpu cores : 4 apicid : 16 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold vmmcall bmi1 bugs : fxsave_leak sysret_ss_attrs bogomips : 8036.70 TLB size : 1536 4K pages clflush size : 64 cache_alignment : 64 address sizes : 48 bits physical, 48 bits virtual power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro Any ideas? Thanks -- Christoph -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/