kern/84836: Fatal trap on 6.0-BETA2 when use SC_PIXEL_MODE, SHED_ULE, VESA_800x600

Fri Aug 12 08:50:21 GMT 2005

>Number:         84836
>Category:       kern
>Synopsis:       Fatal trap on 6.0-BETA2 when use SC_PIXEL_MODE, SHED_ULE, VESA_800x600
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Aug 12 08:50:20 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     Andrey V. Elsukov
>Release:        FreeBSD 6.0-BETA2 i386
>Organization:
>Environment:
FreeBSD 6.0-BETA2 #0: Fri Aug 12 10:50:03 MSD 2005
    butcher@:/usr/obj/usr/src/sys/TEST
>Description:
I have custom kernel:
---------------------------------
-cpu            I486_CPU
-cpu            I586_CPU
 cpu            I686_CPU
-ident          GENERIC
+ident          TEST

-#options       SCHED_ULE               # ULE scheduler
-options        SCHED_4BSD              # 4BSD scheduler
+options        SCHED_ULE               # ULE scheduler
+#options       SCHED_4BSD              # 4BSD scheduler

+options                SC_DISABLE_REBOOT
+options                SC_PIXEL_MODE
---------------------------------
/boot/loader.conf:
vesa_load="YES"
---------------------------------
/boot/device.hints:
hint.sc.0.flags="0x180"
---------------------------------
/etc/rc.conf:
allscreen_flags="-g 100x37 VESA_800x600" 
---------------------------------
and system trap during boot.

>How-To-Repeat:
always.

>Fix:
boot in single user mode with hint.sc.0.flags="0x100" and disable allscreen_flags.


--- out.txt begins here ---
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#0  doadump () at pcpu.h:165
	in pcpu.h
(kgdb) bt
#0  doadump () at pcpu.h:165
#1  0xc0631cf4 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:397
#2  0xc0632009 in panic (fmt=0xc0823272 "from debugger")
    at /usr/src/sys/kern/kern_shutdown.c:553
#3  0xc0468d91 in db_panic (addr=-1065572748, have_addr=0, count=-1, 
    modif=0xd53867b0 "") at /usr/src/sys/ddb/db_command.c:435
#4  0xc0468d28 in db_command (last_cmdp=0xc09060a4, cmd_table=0x0, 
    aux_cmd_tablep=0xc088371c, aux_cmd_tablep_end=0xc0883738)
    at /usr/src/sys/ddb/db_command.c:349
#5  0xc0468df0 in db_command_loop () at /usr/src/sys/ddb/db_command.c:455
#6  0xc046a991 in db_trap (type=18, code=0) at /usr/src/sys/ddb/db_main.c:221
#7  0xc064ada4 in kdb_trap (type=18, code=0, tf=0xd5386920)
    at /usr/src/sys/kern/subr_kdb.c:473
#8  0xc07f01f8 in trap_fatal (frame=0xd5386920, eva=0)
    at /usr/src/sys/i386/i386/trap.c:832
#9  0xc07efd74 in trap (frame=
      {tf_fs = -1048641528, tf_es = 40, tf_ds = -717750232, tf_edi = -1048583100, tf_esi = 1800, tf_ebp = -717723284, tf_isp = -717723316, tf_ebx = 400, tf_edx = 0, tf_ecx = -1048583168, tf_eax = 400, tf_trapno = 18, tf_err = 0, tf_eip = -1065572748, tf_cs = 32, tf_eflags = 66050, tf_esp = -717723276, tf_ss = -1048583168}) at /usr/src/sys/i386/i386/trap.c:639
#10 0xc07de0fa in calltrap () at /usr/src/sys/i386/i386/exception.s:139
#11 0xc17f0008 in ?? ()
#12 0x00000028 in ?? ()
#13 0xd5380028 in ?? ()
#14 0xc17fe444 in ?? ()
#15 0x00000708 in ?? ()
#16 0xd538696c in ?? ()
#17 0xd538694c in ?? ()
#18 0x00000190 in ?? ()
#19 0x00000000 in ?? ()
#20 0xc17fe400 in ?? ()
#21 0x00000190 in ?? ()
#22 0x00000012 in ?? ()
#23 0x00000000 in ?? ()
#24 0xc07ca674 in sc_mouse_move (scp=0x0, x=400, y=0)
    at /usr/src/sys/dev/syscons/scmouse.c:132
#25 0xc07d4d12 in sc_alloc_scr_buffer (scp=0xc17fe400, wait=1, discard=1)
    at /usr/src/sys/dev/syscons/syscons.c:2918
#26 0xc07cf85c in sc_set_pixel_mode (scp=0xc17fe400, tp=0xc16cec00, 
    xsize=100, ysize=37, fontsize=16)
    at /usr/src/sys/dev/syscons/scvidctl.c:434
#27 0xc07d03cc in sc_vid_ioctl (tp=0xc16cec00, cmd=0, data=0xc16bb130 "d", 
    flag=1, td=0xc179daf0) at /usr/src/sys/dev/syscons/scvidctl.c:791
#28 0xc07d15b0 in scioctl (dev=0xc16c4000, cmd=2148289380, 
    data=0xc16bb130 "d", flag=1, td=0xc179daf0)
    at /usr/src/sys/dev/syscons/syscons.c:678
#29 0xc05eb34b in devfs_ioctl_f (fp=0xc17771b0, com=2148289380, 
    data=0xc16bb130, cred=0xc1555a80, td=0xc179daf0)
    at /usr/src/sys/fs/devfs/devfs_vnops.c:566
#30 0xc0656950 in ioctl (td=0xc179daf0, uap=0xd5386d04) at file.h:258
#31 0xc07f04e7 in syscall (frame=
      {tf_fs = 59, tf_es = 59, tf_ds = 59, tf_edi = 536892930, tf_esi = 258, tf_ebp = -1077941928, tf_isp = -717722268, tf_ebx = 37, tf_edx = 0, tf_ecx = 600, tf_eax = 54, tf_trapno = 12, tf_err = 2, tf_eip = 671847047, tf_cs = 51, tf_eflags = 514, tf_esp = -1077942020, tf_ss = 59})
    at /usr/src/sys/i386/i386/trap.c:986
#32 0xc07de14f in Xint0x80_syscall ()
    at /usr/src/sys/i386/i386/exception.s:200
#33 0x0000003b in ?? ()
#34 0x0000003b in ?? ()
#35 0x0000003b in ?? ()
#36 0x20005602 in ?? ()
#37 0x00000102 in ?? ()
#38 0xbfbfe958 in ?? ()
#39 0xd5386d64 in ?? ()
#40 0x00000025 in ?? ()
#41 0x00000000 in ?? ()
#42 0x00000258 in ?? ()
#43 0x00000036 in ?? ()
#44 0x0000000c in ?? ()
#45 0x00000002 in ?? ()
#46 0x280b9287 in ?? ()
#47 0x00000033 in ?? ()
#48 0x00000202 in ?? ()
#49 0xbfbfe8fc in ?? ()
#50 0x0000003b in ?? ()
#51 0x00000000 in ?? ()
#52 0x00000000 in ?? ()
#53 0x00000000 in ?? ()
#54 0x00000000 in ?? ()
#55 0x0fa29000 in ?? ()
#56 0xc179dc44 in ?? ()
#57 0xc15594b0 in ?? ()
#58 0xd5386784 in ?? ()
#59 0xd5386768 in ?? ()
#60 0xc179daf0 in ?? ()
#61 0xc0642d47 in sched_switch (td=0x25, newtd=0x102, flags=)
    at /usr/src/sys/kern/sched_ule.c:1377
(kgdb) 
--- out.txt ends here ---


>Release-Note:
>Audit-Trail:
>Unformatted: