Date: Thu, 3 Jun 2010 15:29:18 +0400 From: pluknet <pluknet@gmail.com> To: freebsd-stable <freebsd-stable@freebsd.org> Subject: Re: 6.4-STABLE periodically stucks on boot around cpufreq:est Message-ID: <AANLkTikIpmv0CjPsdGz-vhrSdhWejAxBR40RZJVeslq0@mail.gmail.com> In-Reply-To: <AANLkTimJiIK0C1M1LMpupmpvDl8aE7sykTIgHz0VXa6Z@mail.gmail.com> References: <AANLkTimJiIK0C1M1LMpupmpvDl8aE7sykTIgHz0VXa6Z@mail.gmail.com>
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On 27 May 2010 13:00, pluknet <pluknet@gmail.com> wrote: > Hi, > > When booting box with recent 6.4-STABLE often it's stuck > while trying to switch context in sysctl dev.0.cpu.freq handler. fwiw, that is not an issue for 6.4-RELEASE. I'm going to binary search between them. > > AFAIK it stucks somewhere here: > /etc/rc.d/initrandom > # XXX temporary until we can improve the entropy > # harvesting rate. > # Entropy below is not great, but better than nothing. > # This unblocks the generator at startup > ( ps -fauxww; sysctl -a; date; df -ib; dmesg; ps -fauxww ) \ > | dd of=/dev/random bs=8k 2>/dev/null > cat /bin/ls | dd of=/dev/random bs=8k 2>/dev/null > > Some useful info (on successful boot): > > [root@web72 ~]# sysctl dev.cpufreq > dev.cpufreq.0.%driver: cpufreq > dev.cpufreq.0.%parent: cpu0 > > [root@web72 ~]# sysctl -a dev.cpu > dev.cpu.0.%desc: ACPI CPU > dev.cpu.0.%driver: cpu > dev.cpu.0.%location: handle=\_PR_.CPU0 > dev.cpu.0.%pnpinfo: _HID=none _UID=0 > dev.cpu.0.%parent: acpi0 > dev.cpu.0.freq: 3144 > dev.cpu.0.freq_levels: 3144/-1 2751/-1 2358/-1 1965/-1 1572/-1 1179/-1 > 786/-1 393/-1 > dev.cpu.0.cx_supported: C1/0 > dev.cpu.0.cx_lowest: C1 > dev.cpu.0.cx_usage: 100.00% > dev.cpu.1.%desc: ACPI CPU > dev.cpu.1.%driver: cpu > dev.cpu.1.%location: handle=\_PR_.CPU1 > dev.cpu.1.%pnpinfo: _HID=none _UID=0 > dev.cpu.1.%parent: acpi0 > dev.cpu.1.cx_supported: C1/0 > dev.cpu.1.cx_lowest: C1 > dev.cpu.1.cx_usage: 100.00% > dev.cpu.2.%desc: ACPI CPU > dev.cpu.2.%driver: cpu > dev.cpu.2.%location: handle=\_PR_.CPU2 > dev.cpu.2.%pnpinfo: _HID=none _UID=0 > dev.cpu.2.%parent: acpi0 > dev.cpu.2.cx_supported: C1/0 > dev.cpu.2.cx_lowest: C1 > dev.cpu.2.cx_usage: 100.00% > dev.cpu.3.%desc: ACPI CPU > dev.cpu.3.%driver: cpu > dev.cpu.3.%location: handle=\_PR_.CPU3 > dev.cpu.3.%pnpinfo: _HID=none _UID=0 > dev.cpu.3.%parent: acpi0 > dev.cpu.3.cx_supported: C1/0 > dev.cpu.3.cx_lowest: C1 > dev.cpu.3.cx_usage: 100.00% > dev.cpu.4.%desc: ACPI CPU > dev.cpu.4.%driver: cpu > dev.cpu.4.%location: handle=\_PR_.CPU4 > dev.cpu.4.%pnpinfo: _HID=none _UID=0 > dev.cpu.4.%parent: acpi0 > dev.cpu.4.cx_supported: C1/0 > dev.cpu.4.cx_lowest: C1 > dev.cpu.4.cx_usage: 100.00% > dev.cpu.5.%desc: ACPI CPU > dev.cpu.5.%driver: cpu > dev.cpu.5.%location: handle=\_PR_.CPU5 > dev.cpu.5.%pnpinfo: _HID=none _UID=0 > dev.cpu.5.%parent: acpi0 > dev.cpu.5.cx_supported: C1/0 > dev.cpu.5.cx_lowest: C1 > dev.cpu.5.cx_usage: 100.00% > dev.cpu.6.%desc: ACPI CPU > dev.cpu.6.%driver: cpu > dev.cpu.6.%location: handle=\_PR_.CPU6 > dev.cpu.6.%pnpinfo: _HID=none _UID=0 > dev.cpu.6.%parent: acpi0 > dev.cpu.6.cx_supported: C1/0 > dev.cpu.6.cx_lowest: C1 > dev.cpu.6.cx_usage: 100.00% > dev.cpu.7.%desc: ACPI CPU > dev.cpu.7.%driver: cpu > dev.cpu.7.%location: handle=\_PR_.CPU7 > dev.cpu.7.%pnpinfo: _HID=none _UID=0 > dev.cpu.7.%parent: acpi0 > dev.cpu.7.cx_supported: C1/0 > dev.cpu.7.cx_lowest: C1 > dev.cpu.7.cx_usage: 100.00% > > Related part of dmesg: > FreeBSD 6.4-STABLE #3: Fri May 21 14:25:41 MSD 2010 > acpi_alloc_wakeup_handler: can't alloc wake memory > ACPI APIC Table: <IBM SERVALNT> > Timecounter "i8254" frequency 1193182 Hz quality 0 > CPU: Intel(R) Xeon(R) CPU X5460 @ 3.16GHz (3158.77-MHz 686-class CPU) > Origin = "GenuineIntel" Id = 0x10676 Stepping = 6 > Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,C > MOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> > Features2=0xce3bd<SSE3,RSVD2,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,DCA,< > b19>> > AMD Features=0x20000000<LM> > AMD Features2=0x1<LAHF> > Cores per package: 4 > real memory = 3221008384 (3071 MB) > avail memory = 3146702848 (3000 MB) > FreeBSD/SMP: Multiprocessor System Detected: 8 CPUs > cpu0 (BSP): APIC ID: 0 > cpu1 (AP): APIC ID: 1 > cpu2 (AP): APIC ID: 2 > cpu3 (AP): APIC ID: 3 > cpu4 (AP): APIC ID: 4 > cpu5 (AP): APIC ID: 5 > cpu6 (AP): APIC ID: 6 > cpu7 (AP): APIC ID: 7 > ioapic0 <Version 2.0> irqs 0-23 on motherboard > kbd1 at kbdmux0 > ath_hal: 0.9.20.3 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413) > hptrr: HPT RocketRAID controller driver v1.1 (May 11 2010 16:10:15) > acpi0: <IBM SERVALNT> on motherboard > acpi0: Power Button (fixed) > Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000 > acpi_timer0: <24-bit timer at 3.579545MHz> port 0x588-0x58b on acpi0 > acpi_hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0 > Timecounter "HPET" frequency 14318180 Hz quality 900 > cpu0: <ACPI CPU> on acpi0 > acpi_throttle0: <ACPI CPU Throttling> on cpu0 > cpu1: <ACPI CPU> on acpi0 > acpi_throttle1: <ACPI CPU Throttling> on cpu1 > acpi_throttle1: failed to attach P_CNT > device_attach: acpi_throttle1 attach returned 6 > cpu2: <ACPI CPU> on acpi0 > acpi_throttle2: <ACPI CPU Throttling> on cpu2 > acpi_throttle2: failed to attach P_CNT > device_attach: acpi_throttle2 attach returned 6 > cpu3: <ACPI CPU> on acpi0 > acpi_throttle3: <ACPI CPU Throttling> on cpu3 > acpi_throttle3: failed to attach P_CNT > device_attach: acpi_throttle3 attach returned 6 > cpu4: <ACPI CPU> on acpi0 > acpi_throttle4: <ACPI CPU Throttling> on cpu4 > acpi_throttle4: failed to attach P_CNT > device_attach: acpi_throttle4 attach returned 6 > cpu5: <ACPI CPU> on acpi0 > acpi_throttle5: <ACPI CPU Throttling> on cpu5 > acpi_throttle5: failed to attach P_CNT > device_attach: acpi_throttle5 attach returned 6 > cpu6: <ACPI CPU> on acpi0 > acpi_throttle6: <ACPI CPU Throttling> on cpu6 > acpi_throttle6: failed to attach P_CNT > device_attach: acpi_throttle6 attach returned 6 > cpu7: <ACPI CPU> on acpi0 > acpi_throttle7: <ACPI CPU Throttling> on cpu7 > acpi_throttle7: failed to attach P_CNT > device_attach: acpi_throttle7 attach returned 6 > [...] > > > Any hints? > > db> ps > pid ppid pgrp uid state wmesg wchan cmd > 68 66 51 0 R+ CPU 255 sysctl > 66 64 51 0 S+ wait 0xc82e6648 sh > 65 59 51 0 S+ piperd 0xc85404c8 dd > 64 59 51 0 S+ wait 0xc82e6218 sh > 59 51 51 0 S+ wait 0xc82e6a78 sh > 51 1 51 0 Ss+ wait 0xc852ec90 sh > 50 0 0 0 SL sdflush 0xc0af5654 [softdepflush] > 49 0 0 0 SL syncer 0xc0adc1bc [syncer] > 48 0 0 0 SL vlruwt 0xc8292a78 [vnlru] > 47 0 0 0 SL psleep 0xc0ae7da0 [bufdaemon] > 46 0 0 0 RL [pagezero] > 45 0 0 0 SL psleep 0xc0af6194 [vmdaemon] > > db> bt 68 > Tracing pid 68 tid 100053 td 0xc8291b60 > sched_switch(c8291b60,0,1) at sched_switch+0x143 > mi_switch(1,0,c8291cc0,0,c0adf600,...) at mi_switch+0x1ba > sched_bind(c8291b60,0) at sched_bind+0x52 > cpu_est_clockrate(0,e897bad4,c84c1400,3,c84c1400,...) at cpu_est_clockrate+0xc1 > cf_levels_method(c8214900,c858f000,e897bb48) at cf_levels_method+0x303 > cf_get_method(c8214900,c857f000) at cf_get_method+0x12b > cpufreq_curr_sysctl(c8218e40,c81ea000,0,e897bc04,c8218e40,...) at > cpufreq_curr_sysctl+0x81 > sysctl_root(0,e897bc74,4,e897bc04) at sysctl_root+0x107 > userland_sysctl(c8291b60,e897bc74,4,0,bfbfdbdc,0,0,0,e897bc70,0) at > userland_sysctl+0x112 > __sysctl(c8291b60,e897bd04) at __sysctl+0x93 > syscall(3b,bfbf003b,bfbf003b,4,bfbfdbdc,...) at syscall+0x2bf > Xint0x80_syscall() at Xint0x80_syscall+0x1f > --- syscall (202, FreeBSD ELF32, __sysctl), eip = 0x2812650b, esp = > 0xbfbfdb4c, ebp = 0xbfbfdb88 --- > > db> bt 65 > Tracing pid 65 tid 100051 td 0xc82e4000 > sched_switch(c82e4000,0,1) at sched_switch+0x143 > mi_switch(1,0,c85404c8,ec997bec,c06e32b9,...) at mi_switch+0x1ba > sleepq_switch(c85404c8) at sleepq_switch+0x87 > sleepq_wait_sig(c85404c8) at sleepq_wait_sig+0x1d > msleep(c85404c8,c8540638,14c,c09d8540,0,...) at msleep+0x25a > pipe_read(c8536ab0,ec997cbc,c80f5700,0,c82e4000) at pipe_read+0x42d > dofileread(c82e4000,0,c8536ab0,ec997cbc,ffffffff,...) at dofileread+0x85 > kern_readv(c82e4000,0,ec997cbc,804f000,2000,...) at kern_readv+0x36 > read(c82e4000,ec997d04) at read+0x45 > syscall(3b,3b,3b,2004,bfbfeebc,...) at syscall+0x2bf > Xint0x80_syscall() at Xint0x80_syscall+0x1f > --- syscall (3, FreeBSD ELF32, read), eip = 0x2813d8d7, esp = > 0xbfbfee0c, ebp = 0xbfbfee58 --- > > db> show allpcpu > Current CPU: 1 > > cpuid = 0 > curthread = 0xc80fa9c0: pid 18 "swi4: clock sio" > curpcb = 0xe6ce4d90 > fpcurthread = none > idlethread = 0xc80fa820: pid 17 "idle: cpu0" > APIC ID = 0 > currentldt = 0x50 > > cpuid = 1 > curthread = 0xc80fa000: pid 16 "idle: cpu1" > curpcb = 0xe6cd2d90 > fpcurthread = none > idlethread = 0xc80fa000: pid 16 "idle: cpu1" > APIC ID = 1 > currentldt = 0x50 > > cpuid = 2 > curthread = 0xc80f8d00: pid 15 "idle: cpu2" > curpcb = 0xe6ccfd90 > fpcurthread = none > > idlethread = 0xc80f8d00: pid 15 "idle: cpu2" > APIC ID = 2 > currentldt = 0x50 > > cpuid = 3 > curthread = 0xc80f8b60: pid 14 "idle: cpu3" > curpcb = 0xe6cccd90 > fpcurthread = none > idlethread = 0xc80f8b60: pid 14 "idle: cpu3" > APIC ID = 3 > currentldt = 0x50 > > cpuid = 4 > curthread = 0xc80f89c0: pid 13 "idle: cpu4" > curpcb = 0xe6cc9d90 > fpcurthread = none > idlethread = 0xc80f89c0: pid 13 "idle: cpu4" > APIC ID = 4 > currentldt = 0x50 > cpuid = 5 > curthread = 0xc80f8820: pid 12 "idle: cpu5" > curpcb = 0xe6cc6d90 > fpcurthread = none > idlethread = 0xc80f8820: pid 12 "idle: cpu5" > APIC ID = 5 > currentldt = 0x50 > > cpuid = 6 > curthread = 0xc80f8680: pid 11 "idle: cpu6" > curpcb = 0xe6cc3d90 > fpcurthread = none > idlethread = 0xc80f8680: pid 11 "idle: cpu6" > APIC ID = 6 > currentldt = 0x50 > > cpuid = 7 > curthread = 0xc80f84e0: pid 10 "idle: cpu7" > curpcb = 0xe6cc0d90 > fpcurthread = none > idlethread = 0xc80f84e0: pid 10 "idle: cpu7" > APIC ID = 7 > currentldt = 0x50 > > db> bt 18 > Tracing pid 18 tid 100015 td 0xc80fa9c0 > sched_switch(c0b21c20,c093091c,0,0,0,...) at sched_switch+0x143 > -- wbr, pluknet
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