oops on serial access

Samuli Kaski (davec@asylum.apocalypse.org)
Sun, 19 Apr 1998 03:46:05 -0600


I tried out 2.1.96 on a Toshiba 445CDX with a PCMCIA modem and got the
following error when trying to access the modem. I believe that I've
got the latest PCMCIA package, and a PCMCIA SRAM card works ok. Also,
after getting this, when I shut down, I get a screenful of 'Scheduling
in Interrupt', and my disks aren't cleanly unmounted.
thanks,
-davec

Apr 18 13:36:59 neon kernel: divide error: 0000
Apr 18 13:36:59 neon kernel: CPU: 0
Apr 18 13:36:59 neon kernel: EIP: 0010:[<c01a9490>]
Apr 18 13:36:59 neon kernel: EFLAGS: 00010257
Apr 18 13:36:59 neon kernel: eax: 00000000 ebx: c2880000 ecx: c2bec000 edx: 00000000
Apr 18 13:36:59 neon kernel: esi: c28d6000 edi: c2ea3120 ebp: 00000000 esp: c2881ec4
Apr 18 13:36:59 neon kernel: ds: 0018 es: 0018 ss: 0018
Apr 18 13:36:59 neon kernel: Process kermit (pid: 176, process nr: 28, stackpage=c2881000)
Apr 18 13:36:59 neon kernel: Stack: c01d3206 c2ea3120 00000000 c2880000 c28d6000 c2881efc c2881f24 000014e2
Apr 18 13:36:59 neon kernel: c0198a4b c28d6000 00000000 080d5f7c 080d5fa0 00000002 c2880000 c28d6960
Apr 18 13:36:59 neon kernel: c0198dfd c28d6000 00000000 080d5f7c 080d5f7c c28d6000 c28d6000 00000000
Apr 18 13:36:59 neon kernel: Call Trace: [<c01d3206>] [<c0198a4b>] [<c0198dfd>] [<c01991c9>] [<c0195552>] [<c01960f7>] [<c012c698>]
Apr 18 13:36:59 neon kernel: [<c0109898>]
Apr 18 13:36:59 neon kernel: Code: f7 7f 10 89 c6 b9 05 00 00 00 31 d2 f7 f1 89 c6 83 c4 0c 85

Using `/boot/System.map' to map addresses to symbols.

>>EIP: c01a9490 <rs_wait_until_sent+a4/124>
Trace: c01d3206 <NR_TYPES+ab6/1080>
Trace: c0198a4b <tty_wait_until_sent+d7/114>
Trace: c0198dfd <set_termios+139/17c>
Trace: c01991c9 <n_tty_ioctl+1f9/53c>
Trace: c0195552 <tty_release+a/10>
Trace: c01960f7 <tty_ioctl+42b/440>
Trace: c012c698 <sys_ioctl+13c/190>
Trace: c0109898 <system_call+38/40>
Code: c01a9490 <rs_wait_until_sent+a4/124>
Code: c01a9490 <rs_wait_until_sent+a4/124> f7 7f 10 idivl 0x10(%edi),%eax
Code: c01a9493 <rs_wait_until_sent+a7/124> 89 c6 movl %eax,%esi
Code: c01a9495 <rs_wait_until_sent+a9/124> b9 05 00 00 00 movl $0x5,%ecx
Code: c01a94a0 <rs_wait_until_sent+b4/124> 31 d2 xorl %edx,%edx
Code: c01a94a2 <rs_wait_until_sent+b6/124> f7 f1 divl %ecx,%eax
Code: c01a94a4 <rs_wait_until_sent+b8/124> 89 c6 movl %eax,%esi
Code: c01a94a6 <rs_wait_until_sent+ba/124> 83 c4 0c addl $0xc,%esp
Code: c01a94a9 <rs_wait_until_sent+bd/124> 85 00 testl %eax,(%eax)
Code: c01a94b1 <rs_wait_until_sent+c5/124> 90 nop
Code: c01a94b2 <rs_wait_until_sent+c6/124> 90 nop
Code: c01a94b3 <rs_wait_until_sent+c7/124> 90 nop

Configuration info:

#
# Automatically generated by make menuconfig: don't edit
#

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# Processor type and features
#
# CONFIG_M386 is not set
# CONFIG_M486 is not set
CONFIG_M586=y
# CONFIG_M686 is not set
# CONFIG_MATH_EMULATION is not set

#
# Loadable module support
#
CONFIG_MODULES=y
# CONFIG_MODVERSIONS is not set
# CONFIG_KMOD is not set

#
# General setup
#
CONFIG_NET=y
CONFIG_PCI=y
CONFIG_PCI_BIOS=y
CONFIG_PCI_DIRECT=y
# CONFIG_PCI_OPTIMIZE is not set
CONFIG_PCI_OLD_PROC=y
# CONFIG_MCA is not set
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_BINFMT_AOUT=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_MISC=y
# CONFIG_BINFMT_JAVA is not set
CONFIG_VIDEO_SELECT=y
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=y
# CONFIG_PARPORT_OTHER is not set

#
# Plug and Play support
#
# CONFIG_PNP is not set

#
# Floppy, IDE, and other block devices
#
CONFIG_BLK_DEV_FD=y
CONFIG_BLK_DEV_IDE=y
# CONFIG_BLK_DEV_HD_IDE is not set
CONFIG_BLK_DEV_IDEDISK=y
CONFIG_BLK_DEV_IDECD=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEFLOPPY is not set
# CONFIG_BLK_DEV_IDESCSI is not set
CONFIG_BLK_DEV_CMD640=y
# CONFIG_BLK_DEV_CMD640_ENHANCED is not set
CONFIG_BLK_DEV_RZ1000=y
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_BLK_DEV_IDEDMA=y
# CONFIG_BLK_DEV_OPTI621 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_NS87415 is not set
# CONFIG_IDE_CHIPSETS is not set
CONFIG_BLK_DEV_LOOP=y
# CONFIG_BLK_DEV_MD is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_XD is not set
CONFIG_PARIDE_PARPORT=y
# CONFIG_PARIDE is not set
# CONFIG_BLK_DEV_HD is not set

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_NETLINK is not set
# CONFIG_FIREWALL is not set
# CONFIG_NET_ALIAS is not set
# CONFIG_FILTER is not set
CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_IP_ACCT is not set
# CONFIG_IP_ROUTER is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_ALIAS is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_RARP is not set
CONFIG_IP_NOSR=y
CONFIG_SKB_LARGE=y
# CONFIG_IPV6 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_BRIDGE is not set
# CONFIG_LLC is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set
# CONFIG_CPU_IS_SLOW is not set
# CONFIG_NET_SCHED is not set
# CONFIG_NET_PROFILE is not set

#
# SCSI support
#
# CONFIG_SCSI is not set

#
# Network device support
#
CONFIG_NETDEVICES=y
# CONFIG_ARCNET is not set
CONFIG_DUMMY=y
# CONFIG_EQUALIZER is not set
# CONFIG_NET_ETHERNET is not set
# CONFIG_FDDI is not set
# CONFIG_DLCI is not set
# CONFIG_PLIP is not set
CONFIG_PPP=y
# CONFIG_SLIP is not set
# CONFIG_NET_RADIO is not set
# CONFIG_TR is not set
# CONFIG_SHAPER is not set

#
# Amateur Radio support
#
# CONFIG_HAMRADIO is not set

#
# ISDN subsystem
#
# CONFIG_ISDN is not set

#
# CD-ROM drivers (not for SCSI or IDE/ATAPI drives)
#
# CONFIG_CD_NO_IDESCSI is not set

#
# Filesystems
#
# CONFIG_QUOTA is not set
# CONFIG_MINIX_FS is not set
CONFIG_EXT2_FS=y
CONFIG_ISO9660_FS=y
# CONFIG_JOLIET is not set
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
# CONFIG_UMSDOS_FS is not set
CONFIG_VFAT_FS=y
CONFIG_PROC_FS=y
# CONFIG_NFS_FS is not set
# CONFIG_NFSD is not set
# CONFIG_SUNRPC is not set
# CONFIG_LOCKD is not set
# CONFIG_CODA_FS is not set
# CONFIG_SMB_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_AFFS_FS is not set
CONFIG_HFS_FS=y
# CONFIG_ROMFS_FS is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_DEVPTS_FS is not set
# CONFIG_MAC_PARTITION is not set
CONFIG_NLS=y

#
# Native Language Support
#
CONFIG_NLS_CODEPAGE_437=y
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
CONFIG_NLS_ISO8859_1=y
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_KOI8_R is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_SERIAL=y
# CONFIG_SERIAL_CONSOLE is not set
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_PRINTER=y
# CONFIG_PRINTER_READBACK is not set
CONFIG_MOUSE=y
# CONFIG_ATIXL_BUSMOUSE is not set
# CONFIG_BUSMOUSE is not set
# CONFIG_MS_BUSMOUSE is not set
CONFIG_PSMOUSE=y
# CONFIG_82C710_MOUSE is not set
# CONFIG_PC110_PAD is not set
# CONFIG_UMISC is not set
# CONFIG_QIC02_TAPE is not set
CONFIG_APM=y
# CONFIG_APM_IGNORE_USER_SUSPEND is not set
CONFIG_APM_DO_ENABLE=y
CONFIG_APM_CPU_IDLE=y
CONFIG_APM_DISPLAY_BLANK=y
CONFIG_APM_POWER_OFF=y
CONFIG_APM_IGNORE_MULTIPLE_SUSPEND=y
# CONFIG_WATCHDOG is not set
CONFIG_RTC=y
# CONFIG_VIDEO_DEV is not set
# CONFIG_NVRAM is not set
# CONFIG_JOYSTICK is not set
# CONFIG_MISC_RADIO is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set

#
# Sound
#
CONFIG_SOUND=y
# CONFIG_PAS is not set
# CONFIG_SB is not set
CONFIG_ADLIB=y
# CONFIG_GUS is not set
# CONFIG_MPU401 is not set
# CONFIG_PSS is not set
CONFIG_MSS=y
CONFIG_MSS_BASE=530
CONFIG_MSS_IRQ=5
CONFIG_MSS_DMA=0
CONFIG_MSS_DMA2=1
# CONFIG_SSCAPE is not set
# CONFIG_TRIX is not set
# CONFIG_MAD16 is not set
# CONFIG_MAD16_OLDCARD is not set
# CONFIG_CS4232 is not set
# CONFIG_MAUI is not set
# CONFIG_OPL3SA1 is not set
# CONFIG_SOFTOSS is not set
CONFIG_YM3812=y
# CONFIG_VMIDI is not set
# CONFIG_UART6850 is not set
# CONFIG_LOWLEVEL_SOUND is not set

#
# Kernel hacking
#
# CONFIG_PROFILE is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_VGA_CONSOLE=y

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