Messages in this thread | | | Date | Tue, 10 Nov 1998 17:35:50 +0100 (CET) | From | Daniel Ryde <> | Subject | GPF: kernel 2.0.35 in ppp_tty_read |
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Here is another gpf I get on our terminal servers from time to time, I reported somthing similar back in september, but got no response:
general protection: 0000 CPU: 0 EIP: 0010:[<00196a80>] EFLAGS: 00010286 eax: 00000000 ebx: 008c4814 ecx: 00000005 edx: f000ef6f esi: 00000006 edi: 080628dc ebp: 000005e0 esp: 017f3f58 ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018 Process pppd (pid: 28629, process nr: 26, stackpage=017f3000) Stack: 0072d000 00443154 003b8700 000005e0 00000005 000c5706 00174afd 0072d000 00443154 080628da 000005e0 00000000 00443154 000005e0 003b8700 00122ae0 003b8700 00443154 080628da 000005e0 005dc414 00000005 0805ff64 bffffdd0 Call Trace: [<00174afd>] [<00122ae0>] [<0010a705>] [<0018a2b8>] Code: 8a 52 20 88 54 24 14 ff 40 0c 8b 43 6c 8b 08 21 48 0c 0f b6
>>EIP: 196a80 <ppp_tty_read+2b0/304> Trace: 174afd <tty_read+9d/bc> Trace: 122ae0 <sys_read+c0/e8> Trace: 10a705 <system_call+55/80> Trace: 18a2b8 <ne_probe+58/98>
Code: 196a80 <ppp_tty_read+2b0/304> Code: 196a80 <ppp_tty_read+2b0/304> 8a 52 20 movb 0x20(%edx),%dl Code: 196a83 <ppp_tty_read+2b3/304> 88 54 24 14 movb %dl,0x14(%esp,1) Code: 196a87 <ppp_tty_read+2b7/304> ff 40 0c incl 0xc(%eax) Code: 196a90 <ppp_tty_read+2c0/304> 8b 43 6c movl 0x6c(%ebx),%eax Code: 196a93 <ppp_tty_read+2c3/304> 8b 08 movl (%eax),%ecx Code: 196a95 <ppp_tty_read+2c5/304> 21 48 0c andl %ecx,0xc(%eax) Code: 196a98 <ppp_tty_read+2c8/304> 0f b6 00 movzbl (%eax),%eax Code: 196aa1 <ppp_tty_read+2d1/304> 90 nop Code: 196aa2 <ppp_tty_read+2d2/304> 90 nop Code: 196aa3 <ppp_tty_read+2d3/304> 90 nop
These machines runs many pppd at the same time. It uses 3 x 8 standard 16550A serial ports where users dial in. The gpf happens once per month or so. Diffrent machines too so it is unlikley hardware related. I think it happens during swap. It does not result in an unusable system. It's a Vanilla 2.0.35 kernel with Solars' secure linux patch applied.
Here is the .config: CONFIG_NET=y CONFIG_PCI=y CONFIG_SYSVIPC=y CONFIG_BINFMT_AOUT=y CONFIG_BINFMT_ELF=y CONFIG_KERNEL_ELF=y CONFIG_M586=y CONFIG_BLK_DEV_FD=y CONFIG_BLK_DEV_IDE=y CONFIG_BLK_DEV_TRITON=y CONFIG_NET_ALIAS=y CONFIG_INET=y CONFIG_IP_FORWARD=y CONFIG_SYN_COOKIES=y CONFIG_IP_ALIAS=y CONFIG_IP_NOSR=y CONFIG_SKB_LARGE=y CONFIG_NETDEVICES=y CONFIG_DUMMY=y CONFIG_PPP=y CONFIG_SLIP=y CONFIG_SLIP_COMPRESSED=y CONFIG_SLIP_SMART=y CONFIG_NET_ETHERNET=y CONFIG_NET_VENDOR_3COM=y CONFIG_VORTEX=y CONFIG_NET_PCI=y CONFIG_DEC_ELCP=y CONFIG_EPIC=y CONFIG_NET_ISA=y CONFIG_NE2000=y CONFIG_MINIX_FS=y CONFIG_EXT2_FS=y CONFIG_NLS=y CONFIG_FAT_FS=y CONFIG_MSDOS_FS=y CONFIG_NLS_CODEPAGE_437=y CONFIG_NLS_CODEPAGE_850=y CONFIG_NLS_ISO8859_1=y CONFIG_PROC_FS=y CONFIG_SERIAL=y CONFIG_SECURE_STACK=y CONFIG_SECURE_LINK=y CONFIG_SECURE_PIPE=y
Bootmessage: Console: 16 point font, 400 scans Console: colour VGA+ 80x25, 1 virtual console (max 63) pcibios_init : BIOS32 Service Directory structure at 0x000f8440 pcibios_init : BIOS32 Service Directory entry at 0xf7e90 pcibios_init : PCI BIOS revision 2.10 entry at 0xf7ec0 Probing PCI hardware. Calibrating delay loop.. ok - 53.25 BogoMIPS Memory: 31036k/32768k available (632k kernel code, 384k reserved, 716k data) Swansea University Computer Society NET3.035 for Linux 2.0 NET3: Unix domain sockets 0.13 for Linux NET3.035. Swansea University Computer Society TCP/IP for NET3.034 IP Protocols: ICMP, UDP, TCP Checking 386/387 coupling... Ok, fpu using exception 16 error reporting. Checking 'hlt' instruction... Ok. Intel Pentium with F0 0F bug - workaround enabled. alias mapping IDT readonly ... ... done Linux version 2.0.35 (ryde@hobbe) (gcc version 2.7.2.1) #2 Fri Aug 7 10:48:35 CEST 1998 Starting kswapd v 1.4.2.2 Serial driver version 4.13 with no serial options enabled tty00 at 0x03f8 (irq = 4) is a 16550A tty01 at 0x02f8 (irq = 3) is a 16550A ide: i82371 PIIX (Triton) on PCI bus 0 function 57 ide0: BM-DMA at 0xe800-0xe807 ide1: BM-DMA at 0xe808-0xe80f hda: FUJITSU M1623TAU, 1623MB w/128kB Cache, CHS=824/64/63, DMA ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 Floppy drive(s): fd0 is 1.44M FDC 0 is a post-1991 82077 PPP: version 2.2.0 (dynamic channel allocation) TCP compression code copyright 1989 Regents of the University of California PPP Dynamic channel allocation code copyright 1995 Caldera, Inc. PPP line discipline registered. SLIP: version 0.8.4-NET3.019-NEWTTY (dynamic channels, max=256). CSLIP: code copyright 1989 Regents of the University of California. SLIP linefill/keepalive option. eth0: 3Com 3c590 Vortex 10Mbps at 0xe000, 00:20:af:cf:21:35, IRQ 11 32K byte-wide RAM 1:1 Rx:Tx split, 10baseT interface. eth0: Overriding PCI latency timer (CFLT) setting of 32, new value is 248. 3c59x.c:v0.99E 5/12/98 Donald Becker http://cesdis.gsfc.nasa.gov/linux/drivers/vortex.html Partition check: hda: hda1 hda2 VFS: Mounted root (ext2 filesystem) readonly. Adding Swap: 66492k swap-space (priority -1)
Best Regards
Daniel Ryde, System Administrator __________________________________________________________________________ Tripnet AB Visit Address: Telephone: +46 31 7252500 Box 5071 Avagen 42 Facsimile: +46 31 7252501 S-402 22 GOTEBORG GOTEBORG Email: ryde@tripnet.se Sweden Sweden
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