Please find below a kernel log from my firewall/gateway. The Linux is from RedHat V7.3 with kernelversion 2.4.20-18.7 #1 Thu May 29 08:32:50 EDT 2003 i686 unknown. Netfilter/Iptables are installed in version iptables-1.2.8-8.72.3 from the RedHat update server. I am not really sure if this is the right place for this bug report. If not so please inform me about other possible steps I can do to find out a solution. Many thanks and best regards, Raoul Thill Mar 31 04:02:03 peggy kernel: RULE 3 -- Accept IN=ppp0 OUT=eth0 SRC=xxx.xxx.xxx.xxx DST=xxx.xxx.xxx.xxx LEN=44 TOS=0x00 PREC=0x00 TTL=57 ID=63675 DF PROTO=TCP SPT=63223 DPT=25 WINDOW=5840 RES=0x00 SYN URGP=0 Mar 31 04:02:39 peggy kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000028 Mar 31 04:02:39 peggy kernel: printing eip: Mar 31 04:02:39 peggy kernel: c0150b2a Mar 31 04:02:39 peggy kernel: *pde = 00000000 Mar 31 04:02:39 peggy kernel: Oops: 0000 Mar 31 04:02:39 peggy kernel: ipt_multiport ipt_LOG ipt_MASQUERADE ipt_state ip_nat_irc ip_conntrack_irc ip_conntrack_ftp ip_nat_ftp autofs smbfs nfs lockd sunrpc ppp_synctty ppp_async ppp Mar 31 04:02:39 peggy kernel: CPU: 0 Mar 31 04:02:39 peggy kernel: EIP: 0010:[<c0150b2a>] Not tainted Mar 31 04:02:39 peggy kernel: EFLAGS: 00010203 Mar 31 04:02:39 peggy kernel: Mar 31 04:02:39 peggy kernel: EIP is at find_inode [kernel] 0x1a (2.4.20-18.7) Mar 31 04:02:39 peggy kernel: eax: 00000000 ebx: 00000000 ecx: 00003fff edx: 00000000 Mar 31 04:02:39 peggy kernel: esi: 00000000 edi: 0021420e ebp: cfd90a80 esp: c8343cfc Mar 31 04:02:39 peggy kernel: ds: 0018 es: 0018 ss: 0018 Mar 31 04:02:39 peggy kernel: Process updatedb (pid: 4670, stackpage=c8343000) Mar 31 04:02:39 peggy kernel: Stack: 0021420e cfd90a80 0021420e c1ac5800 c0150e25 c1ac5800 0021420e cfd90a80 Mar 31 04:02:39 peggy kernel: 00000000 00000000 c1aea174 000001f0 c0130270 c1aea16c 0021420e c881c380 Mar 31 04:02:39 peggy kernel: c81b2380 c1e93900 d0820c88 c1ac5800 0021420e 00000000 00000000 cd8fb99c Mar 31 04:02:39 peggy kernel: Call Trace: [<c0150e25>] iget4 [kernel] 0x45 (0xc8343d0c)) Mar 31 04:02:39 peggy kernel: [<c0130270>] kmem_cache_alloc [kernel] 0xc0 (0xc8343d2c)) Mar 31 04:02:39 peggy kernel: [<d0820c88>] ext3_lookup [ext3] 0x58 (0xc8343d44)) Mar 31 04:02:39 peggy kernel: [<c01469bf>] real_lookup [kernel] 0x4f (0xc8343d84)) Mar 31 04:02:39 peggy kernel: [<c01471aa>] link_path_walk [kernel] 0x67a (0xc8343da0)) Mar 31 04:02:39 peggy kernel: [<c0109e30>] enable_irq [kernel] 0x50 (0xc8343dc8)) Mar 31 04:02:39 peggy kernel: [<d08200f4>] ext3_mark_iloc_dirty [ext3] 0x24 (0xc8343de4)) Mar 31 04:02:39 peggy kernel: [<c018c2e2>] generic_make_request [kernel] 0x102 (0xc8343e00)) Mar 31 04:02:39 peggy kernel: [<d080e5b1>] journal_stop_R54519360 [jbd] 0x1b1 (0xc8343e1c)) Mar 31 04:02:39 peggy kernel: [<c014b082>] filldir64 [kernel] 0xf2 (0xc8343e34)) Mar 31 04:02:39 peggy kernel: [<d081ba67>] ext3_readdir [ext3] 0x317 (0xc8343e7c)) Mar 31 04:02:39 peggy kernel: [<d081bb38>] ext3_readdir [ext3] 0x3e8 (0xc8343e94)) Mar 31 04:02:39 peggy kernel: [<c0147bd8>] open_namei [kernel] 0x2e8 (0xc8343ed8)) Mar 31 04:02:39 peggy kernel: [<c014670e>] getname [kernel] 0x5e (0xc8343f0c)) Mar 31 04:02:39 peggy kernel: [<c01475ab>] path_lookup [kernel] 0x1b (0xc8343f20)) Mar 31 04:02:39 peggy kernel: [<c01477f4>] __user_walk [kernel] 0x24 (0xc8343f30)) Mar 31 04:02:39 peggy kernel: [<c0143de7>] vfs_lstat [kernel] 0x17 (0xc8343f44)) Mar 31 04:02:39 peggy kernel: [<c0144371>] sys_lstat64 [kernel] 0x11 (0xc8343f70)) Mar 31 04:02:39 peggy kernel: [<c01088c3>] system_call [kernel] 0x33 (0xc8343fc0)) Mar 31 04:02:39 peggy kernel: Mar 31 04:02:39 peggy kernel: Mar 31 04:02:39 peggy kernel: Code: 39 7e 28 75 f1 8b 44 24 14 39 86 94 00 00 00 75 e5 8b 54 24 Mar 31 04:04:10 peggy kernel: <6>RULE 3 -- Accept IN=ppp0 OUT=eth0 SRC=xxx.xxx.xxx.xxx DST=xxx.xxx.xxx.xxx LEN=48 TOS=0x00 PREC=0x00 TTL=111 ID=64713 DF PROTO=TCP SPT=64955 DPT=25 WINDOW=16384 RES=0x00 SYN URGP=0 ---------------------------------------------------------------------- ---------------------------------------------------------------------- ---------------------------------------------------------------------- --- Mar 31 07:18:01 peggy kernel: RULE 3 -- Accept IN=ppp0 OUT=eth0 SRC=xxx.xxx.xxx.xxx DST=xxx.xxx.xxx.xxx LEN=48 TOS=0x00 PREC=0x00 TTL=115 ID=54047 DF PROTO=TCP SPT=4457 DPT=25 WINDOW=16384 RES=0x00 SYN URGP=0 Mar 31 07:20:54 peggy kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000028 Mar 31 07:20:54 peggy kernel: printing eip: Mar 31 07:20:54 peggy kernel: c0150b2a Mar 31 07:20:54 peggy kernel: *pde = 00000000 Mar 31 07:20:54 peggy kernel: Oops: 0000 Mar 31 07:20:54 peggy kernel: ipt_multiport ipt_LOG ipt_MASQUERADE ipt_state ip_nat_irc ip_conntrack_irc ip_conntrack_ftp ip_nat_ftp autofs smbfs nfs lockd sunrpc ppp_synctty ppp_async ppp Mar 31 07:20:54 peggy kernel: CPU: 0 Mar 31 07:20:54 peggy kernel: EIP: 0010:[<c0150b2a>] Not tainted Mar 31 07:20:54 peggy kernel: EFLAGS: 00010203 Mar 31 07:20:54 peggy kernel: Mar 31 07:20:54 peggy kernel: EIP is at find_inode [kernel] 0x1a (2.4.20-18.7) Mar 31 07:20:54 peggy kernel: eax: 00000000 ebx: 00000000 ecx: 00003fff edx: 00000000 Mar 31 07:20:54 peggy kernel: esi: 00000000 edi: 0017c234 ebp: cfd90a80 esp: c5361cac Mar 31 07:20:54 peggy kernel: ds: 0018 es: 0018 ss: 0018 Mar 31 07:20:54 peggy squid[1173]: Squid Parent: child process 1175 exited due to signal 11 Mar 31 07:20:54 peggy kernel: Process squid (pid: 1175, stackpage=c5361000) Mar 31 07:20:54 peggy kernel: Stack: 0017c234 cfd90a80 0017c234 c1ac5800 c0150e25 c1ac5800 0017c234 cfd90a80 Mar 31 07:20:54 peggy kernel: 00000000 00000000 c3e67300 00000001 c5361d4c c5361d1c 0017c234 c3af2680 Mar 31 07:20:54 peggy kernel: cf523180 c0afbc00 d0820c88 c1ac5800 0017c234 00000000 00000000 ce569738 Mar 31 07:20:54 peggy kernel: Call Trace: [<c0150e25>] iget4 [kernel] 0x45 (0xc5361cbc)) Mar 31 07:20:54 peggy kernel: [<d0820c88>] ext3_lookup [ext3] 0x58 (0xc5361cf4)) Mar 31 07:20:54 peggy kernel: [<c01469bf>] real_lookup [kernel] 0x4f (0xc5361d34)) Mar 31 07:20:54 peggy kernel: [<c01471aa>] link_path_walk [kernel] 0x67a (0xc5361d50)) Mar 31 07:20:54 peggy kernel: [<d080dcb8>] journal_get_write_access_Rc2c3fc04 [jbd] 0x38 (0xc5361d7c)) Mar 31 07:20:54 peggy kernel: [<d0820161>] ext3_reserve_inode_write [ext3] 0x31 (0xc5361da0)) Mar 31 07:20:54 peggy kernel: [<d0815680>] .rodata.str1.1 [jbd] 0x0 (0xc5361dc4)) Mar 31 07:20:54 peggy kernel: [<d08132a7>] __jbd_kmalloc [jbd] 0x27 (0xc5361dc8)) Mar 31 07:20:54 peggy kernel: [<d08200f4>] ext3_mark_iloc_dirty [ext3] 0x24 (0xc5361de4)) Mar 31 07:20:54 peggy kernel: [<d0820105>] ext3_mark_iloc_dirty [ext3] 0x35 (0xc5361dec)) Mar 31 07:20:54 peggy kernel: [<d080e5b1>] journal_stop_R54519360 [jbd] 0x1b1 (0xc5361e1c)) Mar 31 07:20:54 peggy kernel: [<d08202b3>] ext3_dirty_inode [ext3] 0x93 (0xc5361e3c)) Mar 31 07:20:54 peggy kernel: [<c013624b>] __alloc_pages [kernel] 0x7b (0xc5361e90)) Mar 31 07:20:54 peggy kernel: [<d081bb38>] ext3_readdir [ext3] 0x3e8 (0xc5361e94)) Mar 31 07:20:54 peggy kernel: [<c0136530>] __get_free_pages [kernel] 0x10 (0xc5361ebc)) Mar 31 07:20:54 peggy kernel: [<c01475ab>] path_lookup [kernel] 0x1b (0xc5361ed0)) Mar 31 07:20:54 peggy kernel: [<c0147975>] open_namei [kernel] 0x85 (0xc5361ee0)) Mar 31 07:20:54 peggy kernel: [<c01cebff>] sock_poll [kernel] 0x1f (0xc5361f10)) Mar 31 07:20:54 peggy kernel: [<c014bad9>] do_pollfd [kernel] 0x59 (0xc5361f28)) Mar 31 07:20:54 peggy kernel: [<c013cdec>] filp_open [kernel] 0x3c (0xc5361f70)) Mar 31 07:20:54 peggy kernel: [<c014670e>] getname [kernel] 0x5e (0xc5361f90)) Mar 31 07:20:54 peggy kernel: [<c013d124>] sys_open [kernel] 0x34 (0xc5361fa8)) Mar 31 07:20:54 peggy kernel: [<c01088c3>] system_call [kernel] 0x33 (0xc5361fc0)) Mar 31 07:20:54 peggy kernel: Mar 31 07:20:54 peggy kernel: Mar 31 07:20:54 peggy kernel: Code: 39 7e 28 75 f1 8b 44 24 14 39 86 94 00 00 00 75 e5 8b 54 24 Mar 31 07:20:57 peggy squid[1173]: Squid Parent: child process 9377 started Mar 31 07:24:57 peggy kernel: <6>RULE 3 -- Accept IN=ppp0 OUT=eth0 SRC=xxx.xxx.xxx.xxx DST=xxx.xxx.xxx.xxx LEN=48 TOS=0x00 PREC=0x00 TTL=107 ID=64381 DF PROTO=TCP SPT=3240 DPT=25 WINDOW=8760 RES=0x00 SYN URGP=0 ---------------------------------------------------------------------- ---------------------------------------------------------------------- ---------------------------------------------------------------------- --- How reproducible: Not reproducible because it happens last night and I have no idea how to reproduce it. Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info:
RHL 7.3 has reached end of life at Dec 31st 2003, and is no longer supported. You might try the errata kernels that were released after the one you are having problems with.