Date: Sat, 8 May 2010 23:30:58 +0300 From: Kostik Belousov <kostikbel@gmail.com> To: current@freebsd.org Cc: bz@freebsd.org Subject: Re: a panic on uart_z8530_class? Message-ID: <20100508203058.GG83316@deviant.kiev.zoral.com.ua> In-Reply-To: <20100508200032.GB31100@weongyo> References: <20100508200032.GB31100@weongyo>
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--bO4vSxwwZtUjUWHo Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, May 08, 2010 at 01:00:32PM -0700, Weongyo Jeong wrote: > Hello, >=20 > Anyone encountered this panic on recent CURRENT kernel? >=20 > [root@test ~]# uname -a > FreeBSD test 9.0-CURRENT FreeBSD 9.0-CURRENT #16: Sun May 2 00:24:12 PDT= 2010 root@test:/usr/obj/usr/src/sys/GENERIC amd64 >=20 > [root@test /home/freebsd/sys/modules/bwn]# ifconfig wlan0 create wlandev = bwn0 >=20 > Fatal trap 12: page fault while in kernel mode > cpuid =3D 0; apic id =3D 00 > fault virtual address =3D 0x0 > fault code =3D supervisor read instruction, page not present > instruction pointer =3D 0x20:0x0 > stack pointer =3D 0x28:0xffffff8073cdd810 > frame pointer =3D 0x28:0xffffff8073cdd8e0 > code segment =3D base 0x0, limit 0xfffff, type 0x1b > =3D DPL 0, pres 1, long 1, def32 0, gran 1 > processor eflags =3D interrupt enabled, resume, IOPL =3D 0 > current process =3D 1795 (ifconfig) > [ thread pid 1795 tid 100096 ] > Stopped at 0: *** error reading from address 0 *** > db> bt > Tracing pid 1795 tid 100096 td 0xffffff0003d8b390 > uart_z8530_class() at 0 uartXXX there is collateral, actual panic happen in the ifc_simple_create(). > ifc_simple_create() at ifc_simple_create+0x89 > if_clone_createif() at if_clone_createif+0x64 > ifioctl() at ifioctl+0x685 > kern_ioctl() at kern_ioctl+0xc5 > ioctl() at ioctl+0xfd > syscall() at syscall+0x102 > Xfast_syscall() at Xfast_syscall+0xe1 > --- syscall (54, FreeBSD ELF64, ioctl), rip =3D 0x800b86d0c, rsp =3D 0x7f= ffffffe2e8, rbp =3D 0x7fffffffee36 --- > db> call doadump > Physical memory: 3916 MB > Dumping 1239 MB: 1224 1208 1192 1176 1160 1144 1128 1112 1096 1080 1064 1= 048 1032 1016 1000 984 968 952 936 920 904 888 872 856 840 824 808 792 776 = 760 744 728 712 696 680 664 648 632 616 600 584 568 552 536 520 504 488 472= 456 440 424 408 392 376 360 344 328 312 296 280 264 248 232 216 200 184 16= 8 152 136 120 104 88 72 56 40 24 8 > Dump complete > =3D 0 > db> reset >=20 > [root@test ~]# kgdb /boot/kernel/kernel /var/crash/vmcore.1 > 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 conditi= ons. > Type "show copying" to see the conditions. > There is absolutely no warranty for GDB. Type "show warranty" for detail= s. > This GDB was configured as "amd64-marcel-freebsd"... > Cannot access memory at address 0xffffff0127ffffe0 > (kgdb) bt > #0 0x0000000000000000 in ?? () > Cannot access memory at address 0x0 > (kgdb) q >=20 > regards, > Weongyo Jeong >=20 > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" --bO4vSxwwZtUjUWHo Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (FreeBSD) iEYEARECAAYFAkvlygEACgkQC3+MBN1Mb4hiwACgo4DmOQLVBaPxx/NMQ6UG/pWs eT4An1TRMT91xJGW9fyrSC+Qqi1klu7O =7gjj -----END PGP SIGNATURE----- --bO4vSxwwZtUjUWHo--
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