Date: Tue, 22 Sep 2015 13:43:17 -0700 From: Sean Bruno <sbruno@freebsd.org> To: freebsd-current@freebsd.org Subject: Re: HWPMC panic Message-ID: <5601BD65.3090200@freebsd.org> In-Reply-To: <20150826211242.GA901@oldtbh.lerctr.org> References: <20150826211242.GA901@oldtbh.lerctr.org>
next in thread | previous in thread | raw e-mail | index | archive | help
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 On 08/26/15 14:12, Larry Rosenman wrote: > Was playing with pmcstats -S instructions -T, and got the following > when I tried to ctrl/c out. > > > oldtbh.lerctr.org dumped core - see /var/crash/vmcore.3 > > Wed Aug 26 16:05:16 CDT 2015 > > FreeBSD oldtbh.lerctr.org 11.0-CURRENT FreeBSD 11.0-CURRENT #18 > r287033: Sun Aug 23 18:08:24 CDT 2015 > root@oldtbh.lerctr.org:/usr/obj/usr/src/sys/VT-LER amd64 > > panic: [p4,700] class mismatch pd 260 != id class 4 > > GNU gdb 6.1.1 [FreeBSD] Copyright 2004 Free Software Foundation, > Inc. GDB is free software, covered by the GNU General Public > License, and you are welcome to change it and/or distribute copies > of it under certain conditions. Type "show copying" to see the > conditions. There is absolutely no warranty for GDB. Type "show > warranty" for details. This GDB was configured as > "amd64-marcel-freebsd"... > > Unread portion of the kernel message buffer: panic: [p4,700] class > mismatch pd 260 != id class 4 cpuid = 1 KDB: stack backtrace: > db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame > 0xfffffe0238744770 vpanic() at vpanic+0x189/frame > 0xfffffe02387447f0 kassert_panic() at kassert_panic+0x132/frame > 0xfffffe0238744860 p4_read_pmc() at p4_read_pmc+0x185/frame > 0xfffffe02387448b0 pmc_stop() at pmc_stop+0x132/frame > 0xfffffe02387448f0 pmc_syscall_handler() at > pmc_syscall_handler+0x1752/frame 0xfffffe0238744ae0 amd64_syscall() > at amd64_syscall+0x25d/frame 0xfffffe0238744bf0 Xfast_syscall() at > Xfast_syscall+0xfb/frame 0xfffffe0238744bf0 --- syscall (0, FreeBSD > ELF64, nosys), rip = 0x801407ffa, rsp = 0x7fffffffe588, rbp = > 0x7fffffffe5a0 --- Uptime: 2d8h36m19s Dumping 3475 out of 8158 > MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..91% > > Reading symbols from /boot/kernel/if_lagg.ko.symbols...done. Loaded > symbols for /boot/kernel/if_lagg.ko.symbols Reading symbols from > /boot/kernel/hwpmc.ko.symbols...done. Loaded symbols for > /boot/kernel/hwpmc.ko.symbols #0 doadump (textdump=1) at > pcpu.h:221 221 pcpu.h: No such file or directory. in pcpu.h (kgdb) > #0 doadump (textdump=1) at pcpu.h:221 #1 0xffffffff80b34ca5 in > kern_reboot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:329 #2 > 0xffffffff80b35298 in vpanic (fmt=<value optimized out>, ap=<value > optimized out>) at /usr/src/sys/kern/kern_shutdown.c:626 #3 > 0xffffffff80b350c2 in kassert_panic (fmt=<value optimized out>) at > /usr/src/sys/kern/kern_shutdown.c:516 #4 0xffffffff8242ee25 in > p4_read_pmc (cpu=1, ri=12, v=0xfffff8012b206aa0) at > /usr/src/sys/modules/hwpmc/../../dev/hwpmc/hwpmc_piv.c:699 #5 > 0xffffffff82425102 in pmc_stop (pm=0xfffff8012b206a80) at > /usr/src/sys/modules/hwpmc/../../dev/hwpmc/hwpmc_mod.c:2741 #6 > 0xffffffff82423a12 in pmc_syscall_handler (td=<value optimized > out>, syscall_args=<value optimized out>) at > /usr/src/sys/modules/hwpmc/../../dev/hwpmc/hwpmc_mod.c:3923 #7 > 0xffffffff80f7c38d in amd64_syscall (td=0xfffff801060759a0, > traced=0) at subr_syscall.c:133 #8 0xffffffff80f5b26b in > Xfast_syscall () at /usr/src/sys/amd64/amd64/exception.S:395 #9 > 0x0000000801407ffa in ?? () Previous frame inner to this frame > (corrupt stack?) Current language: auto; currently minimal (kgdb) > > > > vmcore IS available, and I *CAN* give ssh access. > Odd, can you post what CPU type you have? e.g. from my dmesg: CPU: Intel(R) Xeon(R) CPU E5620 @ 2.40GHz (2400.13-MHz K8-class CPU) Origin="GenuineIntel" Id=0x206c2 Family=0x6 Model=0x2c Stepping=2 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=0x29ee3ff<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSS E3,CX16,xTPR,PDCM,PCID,DCA,SSE4.1,SSE4.2,POPCNT,AESNI> AMD Features=0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM> AMD Features2=0x1<LAHF> VT-x: PAT,HLT,MTF,PAUSE,EPT,UG,VPID TSC: P-state invariant, performance statistics -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQF8BAEBCgBmBQJWAb1iXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXRCQUFENDYzMkU3MTIxREU4RDIwOTk3REQx MjAxRUZDQTFFNzI3RTY0AAoJEBIB78oecn5kcewIAISYfYFC/9rpqZ3vb+ZwIdlc Jhlt15YNhNn10NjtEEi5VE90+gSHXW5I96qTmBaplCNOYRBc86D8KgNUMJT48H2e VTL0J2nBLn6jsqflq+08ps4/z0yFd7L8f+1EayP9RpkXsD6ZpdqMQsX26fT6UZDK q1lTJI9eEngN7EsbIcCmSYYm2geieePxOQgJIOXCO2k8MnB6yfiTHIowTe2klLvT aHzcr6YOCIVG42KFdNFg8ECjBF2VAzov08u5axVuzC447OI9dsItE2f7xum7Cwq6 Tq7kVMI+0+XXxXHCq/ju7gjvp0E5hRqsi3TiO7eEz6WmIYyTnnD8A+ffgC/9v/A= =C+xz -----END PGP SIGNATURE-----
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?5601BD65.3090200>