On Fri, May 11, 2018 at 12:36:40AM -0700, Matthew Macy wrote: > - How many cores? How many sockets? > - Any special config options other than DIAGNOSTIC? >
CPU: Intel(R) Xeon(R) CPU E5-2620 0 @ 2.00GHz (1995.24-MHz K8-class CPU) Origin="GenuineIntel" Id=0x206d7 Family=0x6 Model=0x2d Stepping=7 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> Features2=0x1fbee3ff<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,DCA,SSE4.1,SSE4.2,x2APIC,POPCNT,TSCDLT,AESNI,XSAVE,OSXSAVE,AVX> AMD Features=0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM> AMD Features2=0x1<LAHF> XSAVE Features=0x1<XSAVEOPT> VT-x: PAT,HLT,MTF,PAUSE,EPT,UG,VPID TSC: P-state invariant, performance statistics real memory = 68719476736 (65536 MB) avail memory = 66740162560 (63648 MB) Event timer "LAPIC" quality 600 ACPI APIC Table: <INTEL W2600CR> FreeBSD/SMP: Multiprocessor System Detected: 24 CPUs FreeBSD/SMP: 2 package(s) x 6 core(s) x 2 hardware threads $ sed '/^#/d; /^$/d' < /usr/src/sys/amd64/conf/PHO include GENERIC ident PHO-GENERIC options ALT_BREAK_TO_DEBUGGER options SW_WATCHDOG options DEBUG_LOCKS options DEBUG_VFS_LOCKS options DIAGNOSTIC nooptions DEADLKRES # watchdogd handles this options UFS_EXTATTR options UFS_EXTATTR_AUTOSTART $ - Peter > On Fri, May 11, 2018 at 12:29 AM, Matthew Macy <mm...@freebsd.org> wrote: > > Yes. Can you give me the line number for epoch_call_task+0x7b > > > > > > On Fri, May 11, 2018 at 12:18 AM, Peter Holm <pe...@holm.cc> wrote: > >> On Fri, May 11, 2018 at 04:54:13AM +0000, Matt Macy wrote: > >>> Author: mmacy > >>> Date: Fri May 11 04:54:12 2018 > >>> New Revision: 333480 > >>> URL: https://svnweb.freebsd.org/changeset/base/333480 > >>> > >>> Log: > >>> epoch(9): fix priority handling, make callback lists pcpu, and other > >>> fixes > >>> > >>> - Lend priority to preempted threads in epoch_wait to handle the case > >>> in which we've had priority lent to us. Previously we borrowed the > >>> priority of the lowest priority preempted thread. (pointed out by > >>> mjg@) > >>> > >>> - Don't attempt allocate memory per-domain on powerpc, we don't > >>> currently > >>> handle empty sockets (as is the case on jhibbits Talos' board). > >>> > >>> - Handle deferred callbacks as pcpu lists and poll the lists > >>> periodically. > >>> Currently the interval is 1/hz. > >>> > >>> - Drop the thread lock when adaptive spinning. Holding the lock starves > >>> other threads and can even lead to lockups. > >>> > >>> - Keep a generation count pcpu so that we don't keep spining if a thread > >>> has left and re-entered an epoch section. > >>> > >>> - Actually removed the callback from the callback list so that we don't > >>> double free. Sigh ... > >>> > >>> Approved by: sbruno@ > >>> > >>> Modified: > >>> head/sys/kern/subr_epoch.c > >>> > >>> Modified: head/sys/kern/subr_epoch.c > >>> ============================================================================== > >>> --- head/sys/kern/subr_epoch.c Fri May 11 04:47:05 2018 > >>> (r333479) > >> > >> Could this be yours? > >> > >> cd0: Attempt to query device size failed: NOT READY, Medium not present - > >> tray closed > >> WARNING: WITNESS option enabled, expect reduced performance. > >> WARNING: DIAGNOSTIC option enabled, expect reduced performance. > >> Trying to mount root from ufs:/dev/da0p2 [rw]... > >> Expensive timeout(9) function: 0xffffffff809f20d0(0xffffffff81af5140) > >> 0.006730830 s > >> uhub1: 4 ports with 4 removable, self powered > >> kernel trap 12 with interrupts disabled > >> > >> > >> Fatal trap 12: page fault while in kernel mode > >> cpuid = 12; apic id = 20 > >> fault virtual address = 0x100 > >> fault code = supervisor read data, page not present > >> instruction pointer = 0x20:0xffffffff80bb68db > >> stack pointer = 0x0:0xfffffe00004e19b0 > >> frame pointer = 0x0:0xfffffe00004e19f0 > >> code segment = base 0x0, limit 0xfffff, type 0x1b > >> = DPL 0, pres 1, long 1, def32 0, gran 1 > >> processor eflags = resume, IOPL = 0 > >> current process = 0 (config_0) > >> [ thread pid 0 tid 100081 ] > >> Stopped at epoch_call_task+0x7b: movq ll+0xdf(%rax),%rcx > >> db> show registers > >> cs 0x20 > >> ds 0x3b ll+0x1a > >> es 0x3b ll+0x1a > >> fs 0x13 > >> gs 0x1b > >> ss 0 > >> rax 0 > >> rcx 0x858 ll+0x837 > >> rdx 0xffffffff812f6968 > >> rbx 0xc > >> rsp 0xfffffe00004e19b0 > >> rbp 0xfffffe00004e19f0 > >> rsi 0x14 > >> rdi 0 > >> r8 0xfffff800038f3000 > >> r9 0xffffffff81ff1620 vmspace0+0x130 > >> r10 0xfffff800038f3000 > >> r11 0x40 ll+0x1f > >> r12 0xfffffe00004e19b8 > >> r13 0xc > >> r14 0xfffff8001f0ed400 > >> r15 0xfffff800038f3000 > >> rip 0xffffffff80bb68db epoch_call_task+0x7b > >> rflags 0x10086 > >> epoch_call_task+0x7b: movq ll+0xdf(%rax),%rcx > >> db> bt > >> Tracing pid 0 tid 100081 td 0xfffff800038f3000 > >> epoch_call_task() at epoch_call_task+0x7b/frame 0xfffffe00004e19f0 > >> gtaskqueue_run_locked() at gtaskqueue_run_locked+0x139/frame > >> 0xfffffe00004e1a40 > >> gtaskqueue_thread_loop() at gtaskqueue_thread_loop+0x88/frame > >> 0xfffffe00004e1a70 > >> fork_exit() at fork_exit+0x84/frame 0xfffffe00004e1ab0 > >> fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00004e1ab0 > >> --- trap 0, rip = 0, rsp = 0, rbp = 0 --- > >> db> x/s version > >> version: FreeBSD 12.0-CURRENT #0 r333481: Fri May 11 09:08:40 CEST > >> 2018\012 p...@t2.osted.lan:/usr/obj/usr/src/amd64.amd64/sys/PHO\012 > >> db> > >> > >> - Peter _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
