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Subjectmatroxfb, console switches, and BP6 SMP
Hello, once every week or so (it seems like only after using X for a while
and then switching virtual consoles a lot, and never when the system has
less than around 2 days uptime) my system will hang (no oops, no panic, no
ping, no numlock, no sysrq) during the middle of a console switch. Sometimes
it displays half of one console and half of the other, with one character of
garbage inbetween to separate. I was wondering if anyone else was hitting
this and knew why.

It only started doing this since I picked up the SMP hardware a month ago,
and the crashes are similar and consistent enough that I really don't think
it's the hardware.

I haven't tried any kernel other than stock 2.2.14 so far. I'm using gcc
2.95.2 (egcs) to compile it.

I'm using matroxfb consoles in mode matrox:vesa:0x118, here's the rest of my
hardware:

Abit BP6
Two Celeron 400's
128MB RAM
Matrox G200
DEC Tulip
NE2000 clone (unused currently)
Ensoniq AudioPCI
SymBIOS 53c875 SCSI
SCSI disks
Adaptec AHA-152x SCSI
SCSI CDRW and Compaq PD-650 optical drive
External serial modem
PS/2 mouse

Here's my .config:

CONFIG_EXPERIMENTAL=y
CONFIG_M686=y
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_BSWAP=y
CONFIG_X86_POPAD_OK=y
CONFIG_X86_TSC=y
CONFIG_X86_GOOD_APIC=y
CONFIG_1GB=y
CONFIG_MTRR=y
CONFIG_SMP=y
CONFIG_MODULES=y
CONFIG_KMOD=y
CONFIG_NET=y
CONFIG_PCI=y
CONFIG_PCI_GOANY=y
CONFIG_PCI_BIOS=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_QUIRKS=y
CONFIG_PCI_OLD_PROC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_SYSCTL=y
CONFIG_BINFMT_AOUT=m
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_MISC=m
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
CONFIG_APM=y
CONFIG_APM_DO_ENABLE=y
CONFIG_APM_CPU_IDLE=y
CONFIG_APM_POWER_OFF=y
CONFIG_APM_RTC_IS_GMT=y
CONFIG_PNP=y
CONFIG_PNP_PARPORT=m
CONFIG_BLK_DEV_FD=y
CONFIG_BLK_DEV_IDE=y
CONFIG_BLK_DEV_IDEDISK=y
CONFIG_BLK_DEV_IDECD=m
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_BLK_DEV_IDEDMA=y
CONFIG_IDEDMA_AUTO=y
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_RAM=m
CONFIG_PARIDE_PARPORT=m
CONFIG_PACKET=y
CONFIG_NETLINK=y
CONFIG_RTNETLINK=y
CONFIG_FIREWALL=y
CONFIG_FILTER=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_FIREWALL=y
CONFIG_IP_TRANSPARENT_PROXY=y
CONFIG_IP_MASQUERADE=y
CONFIG_IP_MASQUERADE_ICMP=y
CONFIG_IP_MASQUERADE_MOD=y
CONFIG_IP_MASQUERADE_IPAUTOFW=m
CONFIG_IP_MASQUERADE_IPPORTFW=m
CONFIG_IP_MASQUERADE_MFW=m
CONFIG_NET_IPIP=m
CONFIG_IP_ALIAS=y
CONFIG_INET_RARP=m
CONFIG_SKB_LARGE=y
CONFIG_IPV6=m
CONFIG_IPV6_EUI64=y
CONFIG_IPV6_NO_PB=y
CONFIG_ATALK=m
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=m
CONFIG_BLK_DEV_SR=m
CONFIG_CHR_DEV_SG=m
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_AHA152X=m
CONFIG_SCSI_AHA1542=m
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_TCQ_ON_BY_DEFAULT=y
CONFIG_AIC7XXX_CMDS_PER_DEVICE=8
CONFIG_AIC7XXX_RESET_DELAY=5
CONFIG_SCSI_SYM53C8XX=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=32
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_NET_ETHERNET=y
CONFIG_NET_VENDOR_3COM=y
CONFIG_EL3=m
CONFIG_VORTEX=m
CONFIG_RTL8139=m
CONFIG_NET_ISA=y
CONFIG_NE2000=m
CONFIG_NET_EISA=y
CONFIG_DEC_ELCP=m
CONFIG_EEXPRESS_PRO100=m
CONFIG_NE2K_PCI=m
CONFIG_VIA_RHINE=m
CONFIG_PPP=m
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_SERIAL=y
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
CONFIG_PRINTER=m
CONFIG_PRINTER_READBACK=y
CONFIG_MOUSE=y
CONFIG_PSMOUSE=y
CONFIG_RTC=y
CONFIG_FAT_FS=m
CONFIG_VFAT_FS=m
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_MINIX_FS=m
CONFIG_PROC_FS=y
CONFIG_DEVPTS_FS=y
CONFIG_EXT2_FS=y
CONFIG_CODA_FS=m
CONFIG_NFS_FS=m
CONFIG_SUNRPC=m
CONFIG_LOCKD=m
CONFIG_SMB_FS=m
CONFIG_NLS=y
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_15=m
CONFIG_VGA_CONSOLE=y
CONFIG_VIDEO_SELECT=y
CONFIG_FB=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_VIDEO_SELECT=y
CONFIG_FB_MATROX=y
CONFIG_FB_MATROX_MILLENIUM=y
CONFIG_FB_MATROX_MYSTIQUE=y
CONFIG_FB_MATROX_G100=y
CONFIG_FBCON_CFB8=y
CONFIG_FBCON_CFB16=y
CONFIG_FBCON_CFB24=y
CONFIG_FBCON_CFB32=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_SOUND=m
CONFIG_SOUND_ES1370=m
CONFIG_SOUND_ES1371=m
CONFIG_SOUND_OSS=m
CONFIG_SOUND_SB=m
CONFIG_SOUND_MSS=m
CONFIG_SOUND_MAD16=m
CONFIG_MAD16_OLDCARD=y
CONFIG_SOUND_CS4232=m
CONFIG_SOUND_YM3812=m
CONFIG_MAGIC_SYSRQ=y

If there's any other system-related info any of the SMP hackers need,
name it.
--
Robert Woodcock - rcw@debian.org
"Anybody else wanna negotiate?" -- The Fifth Element

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