Date: Mon, 29 Jul 2013 10:05:08 -0400 From: Michael Butler <imb@protected-networks.net> To: Konstantin Belousov <kostikbel@gmail.com> Cc: freebsd-current@freebsd.org Subject: Re: Panic when starting X with Intel KMS Message-ID: <51F67694.1030800@protected-networks.net> In-Reply-To: <51ED9001.4020809@protected-networks.net> References: <51E6EB0A.2060407@entel.upc.edu> <51EA5166.4020508@entel.upc.edu> <CAPjTQNG7CBYNMQ4yitXv3Wy81YMk-osqcSH=BB1=HjsOqweszw@mail.gmail.com> <20130721071842.GZ5991@kib.kiev.ua> <51ED9001.4020809@protected-networks.net>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I wrote: > Post SVN r252653, I have experienced a similar problem but I'm not sure > it's related .. This is related to SVN r252653 - reverting it solves the instances of the panic detailed below. The recent modification to amd64 addresses the issue but does nothing to help this CPU .. CPU: Genuine Intel(R) CPU T2300 @ 1.66GHz (1662.53-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0x6e8 Family = 0x6 Model = 0xe Stepping = 8 Features=0xbfe9fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> Features2=0xc1a9<SSE3,MON,VMX,EST,TM2,xTPR,PDCM> TSC: P-state invariant, performance statistics .. which claims to have .. imb@toshi:/home/imb> sysctl vm.pmap vm.pmap.pv_entry_count: 627756 vm.pmap.pde.promotions: 20165 vm.pmap.pde.p_failures: 44416 vm.pmap.pde.mappings: 0 vm.pmap.pde.demotions: 19659 vm.pmap.shpgperproc: 200 vm.pmap.pv_entry_max: 2000208 vm.pmap.pg_ps_enabled: 1 vm.pmap.pat_works: 1 Perhaps an equivalent patch to i386/pmap.c is appropriate here? > root@toshi:/var/crash # less info.1 > Dump header from device /dev/ada0s3b > Architecture: i386 > Architecture Version: 2 > Dump Length: 205541376B (196 MB) > Blocksize: 512 > Dumptime: Sat Jul 20 15:21:39 2013 > Hostname: toshi.auburn.protected-networks.net > Magic: FreeBSD Kernel Dump > Version String: FreeBSD 10.0-CURRENT #5 r253505M: Sat Jul 20 14:48:32 > EDT 2013 > imb@toshi.auburn.protected-networks.net:/usr/obj/usr/src/sys/TOSHI > Panic String: bad pte > Dump Parity: 854235148 > Bounds: 1 > Dump Status: good > > root@toshi:/var/crash # kgdb /boot/kernel.old/kernel vmcore.1 > > [ snip ] > > #0 0xc07b814c in doadump () > (kgdb) bt > #0 0xc07b814c in doadump () > #1 0xc07b86ec in kern_reboot () > #2 0xc07b8b68 in panic () > #3 0xc0b20b1d in pmap_remove_pages () > #4 0xc0aa43dd in vmspace_exit () > #5 0xc07814bf in exit1 () > #6 0xc07ba5d5 in sigexit () > #7 0xc07bd35f in postsig () > #8 0xc0804e1b in ast () > #9 0xc0b132b7 in doreti_ast () > #10 0xf1633d08 in ?? () > #11 0x2c00003b in ?? () > # -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (FreeBSD) iEYEARECAAYFAlH2dpQACgkQQv9rrgRC1JKpagCfUTQI8XJigFB9OFWxk05oLnnA onIAoJkBE0O5JoPx+Mz40JBCquBSfthD =w566 -----END PGP SIGNATURE-----
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