#11 Segmentation fault error.

[Pasquale D'Orsi]

After a successfull compilation of kernel 2.6.23 and linux-abi-2.6.23.12.diff, my SCO binary seem to be working. The problem is when (... probably) the binaries try to access a database. In the error log I find:

Dec 9 11:27:24 server kernel: BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000
Dec 9 11:27:24 server kernel: printing eip:
Dec 9 11:27:24 server kernel: f8d3362a
Dec 9 11:27:24 server kernel: *pde = 76310067
Dec 9 11:27:24 server kernel: Oops: 0003 [#42]
Dec 9 11:27:24 server kernel: Modules linked in: abi_ibcs abi_sco abi_cxenix abi_svr4 binfmt_coff abi_lcall abi_util iptable_filter ip_tables ip6table_filter ip6_tables x_tables ipv6 microcode firmware_class ext2 loop tg3 container button serio_raw ipmi_si iTCO_wdtipmi_msghandler sr_mod iTCO_vendor_support shpchp cdrom pci_hotplug sg dm_mirror usbhid hid ff_memless ehci_hcd uhci_hcd sd_mod usbcore dm_snapshot dm_mod edd ext3 mbcache jbd fan ata_piix ahci libata scsi_mod thermal processor
Dec 9 11:27:24 server kernel: CPU: 0
Dec 9 11:27:24 server kernel: EIP: 0060:[<f8d3362a>] Tainted: G D VLI
Dec 9 11:27:24 server kernel: EFLAGS: 00010297 (2.6.23-pdoabi-pdo1 #3)
Dec 9 11:27:24 server kernel: EIP is at report_sco_xstat+0x10e/0x11d [abi_sco]
Dec 9 11:27:24 server kernel: eax: 00000000 ebx: f0bcbef8 ecx: fffbfeb4 edx: f0bcbe68
Dec 9 11:27:24 server kernel: esi: bfffe8f8 edi: f0bcbedc ebp: f0bcbfb8 esp: f0bcbe68
Dec 9 11:27:24 server kernel: ds: 007b es: 007b fs: 0000 gs: 0000 ss: 0068
Dec 9 11:27:24 server kernel: Process swabdb (pid: 22789, ti=f0bca000 task=f5ba97f0 task.ti=f0bca000)
Dec 9 11:27:24 server kernel: Stack: 00000003 00000000 00000000 00000000 00171f61 000181ff 00000000 00000000
Dec 9 11:27:24 server kernel: 00000000 00000000 00008c9d 00000000 493e2d94 3c4bdc20 4939131f 00001000
Dec 9 11:27:24 server kernel: 00000048 32747865 00000000 00000000 00000000 00000000 00000000 00000000
Dec 9 11:27:24 server kernel: Call Trace:
Dec 9 11:27:24 server kernel: [<f8d3378a>] sco_fxstat+0x3b/0x8d [abi_sco]
Dec 9 11:27:24 server kernel: [<f8d2c2ff>] lcall7_dispatch+0x16a/0x3cb [abi_lcall]
Dec 9 11:27:24 server kernel: [<c0136681>] audit_syscall_exit+0x2a2/0x2be
Dec 9 11:27:24 server kernel: [<c0156f9d>] search_binary_handler+0xce/0x176
Dec 9 11:27:24 server kernel: [<f8d3374f>] sco_fxstat+0x0/0x8d [abi_sco]
Dec 9 11:27:24 server kernel: [<c0105955>] do_syscall_trace+0x66/0x165
Dec 9 11:27:24 server kernel: [<f8d2c5ab>] do_lcall+0x44/0x59 [abi_lcall]
Dec 9 11:27:24 server kernel: [<c0290000>] xfrm_stateonly_find+0xe9/0x156
Dec 9 11:27:24 server kernel: =======================
Dec 9 11:27:24 server kernel: Code: 44 24 3c 8b 43 44 89 44 24 40 8d 44 24 44 e8 b2 b6 47 c7 b9 74 00 00 00 89 f0 89 e2 c7 44 24 70 00 00 00 00 e8 9e bd 47 c7 1b 08 <00> 00 4b 37 d5 33 e8 03 64 00 86 01 05 00 a0 86 01 00 a0 2d 3e
Dec 9 11:27:24 server kernel: EIP: [<f8d3362a>] report_sco_xstat+0x10e/0x11d [abi_sco] SS:ESP 0068:f0bcbe68

any ideas ?