Messages in this thread | | | Date | Fri, 11 Apr 2003 03:33:34 -0700 (PDT) | From | Alisha Nigam <> | Subject | module installation in TCP/IP stack error. |
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hi all, i was trying to write a simple kernel module to print the destination address of all the packets comming to my machine.
i was able to compile my module but with a lots of gcc warnings.But while trying to install module its giving ERROR.
------------------------------------------------------- MY PROG : -------------------------------------------------------
#include<linux/module.h> #include <linux/config.h> #include <linux/types.h> #include <linux/kernel.h> #include <linux/sched.h> #include <linux/mm.h> #include <linux/interrupt.h> #include <linux/in.h> #include <linux/inet.h> #include <linux/slab.h> #include <linux/netdevice.h> #include <linux/string.h> #include <linux/skbuff.h> #include <linux/cache.h> #include <linux/rtnetlink.h> #include <linux/init.h> #include <linux/highmem.h>
#include <net/protocol.h> #include <net/dst.h> #include <net/sock.h> #include <net/checksum.h>
#include <asm/uaccess.h> #include <asm/system.h>
int init_module(struct sk_buff *skb) { printk(" packet addr: %s.\n",skb->nh.iph->daddr); kfree_skb(skb); return 0; } void cleanup_module(void) { printk(" <1> Module is removed succesfully\n"); }
------------------------------------------------------- O/P of insmod mymodule.o -------------------------------------------------------
<1>Unable to handle kernel paging request at virtual address f00b7458 printing eip: c489f06d *pde = 00000000 Oops: 0000 mymodule autofs via-rhine mii ipt_REJECT iptable_filter ip_ CPU: 0 EIP: 0010:[<c489f06d>] Tainted: P EFLAGS: 00010292
EIP is at init_module [mymodule] 0xd (2.4.18-14) eax: f00b7448 ebx: c489f060 ecx: c0305480 edx: c0305488 esi: 00000000 edi: 00000000 ebp: c166ff18 esp: c166ff08 ds: 0018 es: 0018 ss: 0018 Process insmod (pid: 1436, stackpage=c166f000) Stack: 0000104f ffffffea 00000000 ffffffea c489f000 c011bf79 c489f060 08074538 000002f4 00000000 080745dc 00000104 00000060 00000060 00000005 c2d084c0 c1b7f000 c309e000 00000060 c489d000 c489f060 00000354 00000000 00000000 Call Trace: [<c011bf79>] sys_init_module [kernel] 0x4d9 (0xc166ff1c)) [<c489f060>] init_module [mymodule] 0x0 (0xc166ff20)) [<c489f060>] init_module [mymodule] 0x0 (0xc166ff58)) [<c010910f>] system_call [mymodule] 0x33 (0xc166ffc0))
Code: ff 70 10 68 b6 f0 89 c4 e8 66 bf 87 fb 8b 43 70 83 c4 10 48 segmentation fault.
NOW WHAT TO DO ?????????????????
Alisha Nigam
------------------------------------------------------ O/P of gcc : ( WARNING messages ) -----------------------------------------------------
In file included from /lib/modules/2.4.18-14/build/include/linux/prefetch.h:13, from /lib/modules/2.4.18-14/build/include/linux/list.h:6, from /lib/modules/2.4.18-14/build/include/linux/module.h:12, from p10.c:3: /lib/modules/2.4.18-14/build/include/asm/processor.h:490: warning: no previous prototype for `prefetch' In file included from /lib/modules/2.4.18-14/build/include/asm/system.h:8, from /lib/modules/2.4.18-14/build/include/asm/semaphore.h:39, from /lib/modules/2.4.18-14/build/include/linux/fs.h:200, from /lib/modules/2.4.18-14/build/include/linux/capability.h:17, from /lib/modules/2.4.18-14/build/include/linux/binfmts.h:5, from /lib/modules/2.4.18-14/build/include/linux/sched.h:9, from p10.c:7: /lib/modules/2.4.18-14/build/include/linux/bitops.h:45: warning: no previous prototype for `generic_fls' /lib/modules/2.4.18-14/build/include/linux/bitops.h:74: warning: no previous prototype for `get_bitmask_order' In file included from /lib/modules/2.4.18-14/build/include/linux/fs.h:201, from /lib/modules/2.4.18-14/build/include/linux/capability.h:17, from /lib/modules/2.4.18-14/build/include/linux/binfmts.h:5, from /lib/modules/2.4.18-14/build/include/linux/sched.h:9, from p10.c:7: /lib/modules/2.4.18-14/build/include/asm/byteorder.h:14: warning: type qualifiers ignored on function return type /lib/modules/2.4.18-14/build/include/asm/byteorder.h:28: warning: type qualifiers ignored on function return type In file included from /lib/modules/2.4.18-14/build/include/linux/byteorder/little_endian.h:11, from /lib/modules/2.4.18-14/build/include/asm/byteorder.h:45, from /lib/modules/2.4.18-14/build/include/linux/fs.h:201, from /lib/modules/2.4.18-14/build/include/linux/capability.h:17, from /lib/modules/2.4.18-14/build/include/linux/binfmts.h:5, from /lib/modules/2.4.18-14/build/include/linux/sched.h:9, from p10.c:7: /lib/modules/2.4.18-14/build/include/linux/byteorder/swab.h:132: warning: type qualifiers ignored on function return type /lib/modules/2.4.18-14/build/include/linux/byteorder/swab.h:145: warning: type qualifiers ignored on function return type /lib/modules/2.4.18-14/build/include/linux/byteorder/swab.h:159: warning: type qualifiers ignored on function return type In file included from /lib/modules/2.4.18-14/build/include/linux/fs.h:375, from /lib/modules/2.4.18-14/build/include/linux/capability.h:17, from /lib/modules/2.4.18-14/build/include/linux/binfmts.h:5, from /lib/modules/2.4.18-14/build/include/linux/sched.h:9, from p10.c:7: /lib/modules/2.4.18-14/build/include/linux/quota.h:176: warning: no previous prototype for `mark_info_dirty' In file included from /lib/modules/2.4.18-14/build/include/linux/sched.h:26, from p10.c:7: /lib/modules/2.4.18-14/build/include/linux/signal.h: In function `sigorsets': /lib/modules/2.4.18-14/build/include/linux/signal.h:108: warning: comparison of unsigned expression < 0 is always false /lib/modules/2.4.18-14/build/include/linux/signal.h: In function `sigandsets': /lib/modules/2.4.18-14/build/include/linux/signal.h:111: warning: comparison of unsigned expression < 0 is always false /lib/modules/2.4.18-14/build/include/linux/signal.h: In function `signandsets': /lib/modules/2.4.18-14/build/include/linux/signal.h:114: warning: comparison of unsigned expression < 0 is always false /lib/modules/2.4.18-14/build/include/linux/signal.h: In function `signotset': /lib/modules/2.4.18-14/build/include/linux/signal.h:140: warning: comparison of unsigned expression < 0 is always false In file included from /lib/modules/2.4.18-14/build/include/linux/netdevice.h:147, from p10.c:13: /lib/modules/2.4.18-14/build/include/linux/skbuff.h: In function `__pskb_pull': /lib/modules/2.4.18-14/build/include/linux/skbuff.h:855: warning: comparison between signed and unsigned /lib/modules/2.4.18-14/build/include/linux/skbuff.h: In function `pskb_may_pull': /lib/modules/2.4.18-14/build/include/linux/skbuff.h:871: warning: comparison between signed and unsigned p10.c: At top level: p10.c:30: warning: no previous prototype for `init_module' p10.c: In function `init_module': p10.c:30: warning: format argument is not a pointer (arg 2) p10.c:30: warning: format argument is not a pointer (arg 2) p10.c: At top level: p10.c:35: warning: no previous prototype for `cleanup_module' /lib/modules/2.4.18-14/build/include/linux/prefetch.h: In function `prefetchw': /lib/modules/2.4.18-14/build/include/linux/prefetch.h:48: warning: unused parameter `x' /lib/modules/2.4.18-14/build/include/linux/wait.h: In function `__remove_wait_queue': /lib/modules/2.4.18-14/build/include/linux/wait.h:225: warning: unused parameter `head' /lib/modules/2.4.18-14/build/include/linux/pm.h: In function `pm_access': /lib/modules/2.4.18-14/build/include/linux/pm.h:150: warning: unused parameter `dev' /lib/modules/2.4.18-14/build/include/linux/pm.h: In function `pm_dev_idle': /lib/modules/2.4.18-14/build/include/linux/pm.h:151: warning: unused parameter `dev' /lib/modules/2.4.18-14/build/include/asm/pgtable-2level.h: In function `pgd_none': /lib/modules/2.4.18-14/build/include/asm/pgtable-2level.h:32: warning: unused parameter `pgd' /lib/modules/2.4.18-14/build/include/asm/pgtable-2level.h: In function `pgd_bad': /lib/modules/2.4.18-14/build/include/asm/pgtable-2level.h:33: warning: unused parameter `pgd' /lib/modules/2.4.18-14/build/include/asm/pgtable-2level.h: In function `pgd_present': /lib/modules/2.4.18-14/build/include/asm/pgtable-2level.h:34: warning: unused parameter `pgd' /lib/modules/2.4.18-14/build/include/asm/pgtable-2level.h: In function `pmd_offset': /lib/modules/2.4.18-14/build/include/asm/pgtable-2level.h:55: warning: unused parameter `address' /lib/modules/2.4.18-14/build/include/linux/mm.h: In function `arch_validate': /lib/modules/2.4.18-14/build/include/linux/mm.h:491: warning: unused parameter `gfp_mask' /lib/modules/2.4.18-14/build/include/linux/mm.h:491: warning: unused parameter `order' /lib/modules/2.4.18-14/build/include/asm/hw_irq.h: In function `hw_resend_irq': /lib/modules/2.4.18-14/build/include/asm/hw_irq.h:217: warning: unused parameter `h' /lib/modules/2.4.18-14/build/include/asm/hardirq.h: In function `irq_enter': /lib/modules/2.4.18-14/build/include/asm/hardirq.h:71: warning: unused parameter `irq' /lib/modules/2.4.18-14/build/include/asm/hardirq.h: In function `irq_exit': /lib/modules/2.4.18-14/build/include/asm/hardirq.h:80: warning: unused parameter `irq' /lib/modules/2.4.18-14/build/include/asm/pgalloc.h: In function `pte_alloc_one': /lib/modules/2.4.18-14/build/include/asm/pgalloc.h:107: warning: unused parameter `mm' /lib/modules/2.4.18-14/build/include/asm/pgalloc.h:107: warning: unused parameter `address' /lib/modules/2.4.18-14/build/include/asm/pgalloc.h: In function `pte_alloc_one_fast': /lib/modules/2.4.18-14/build/include/asm/pgalloc.h:122: warning: unused parameter `mm' /lib/modules/2.4.18-14/build/include/asm/pgalloc.h:123: warning: unused parameter `address' /lib/modules/2.4.18-14/build/include/asm/pgalloc.h: In function `flush_tlb_range': /lib/modules/2.4.18-14/build/include/asm/pgalloc.h:220: warning: unused parameter `start' /lib/modules/2.4.18-14/build/include/asm/pgalloc.h:220: warning: unused parameter `end' /lib/modules/2.4.18-14/build/include/asm/pgalloc.h: In function `flush_tlb_pgtables': /lib/modules/2.4.18-14/build/include/asm/pgalloc.h:238: warning: unused parameter `start' /lib/modules/2.4.18-14/build/include/asm/pgalloc.h:238: warning: unused parameter `end' /lib/modules/2.4.18-14/build/include/linux/highmem.h: In function `clear_user_highpage': /lib/modules/2.4.18-14/build/include/linux/highmem.h:83: warning: unused parameter `vaddr' /lib/modules/2.4.18-14/build/include/linux/highmem.h: In function `copy_user_highpage': /lib/modules/2.4.18-14/build/include/linux/highmem.h:112: warning: unused parameter `vaddr' /lib/modules/2.4.18-14/build/include/linux/skbuff.h: In function `kunmap_skb_frag': /lib/modules/2.4.18-14/build/include/linux/skbuff.h:1104: warning: unused parameter `vaddr' /lib/modules/2.4.18-14/build/include/linux/netdevice.h: In function `dev_init_buffers': /lib/modules/2.4.18-14/build/include/linux/netdevice.h:615: warning: unused parameter `dev' /lib/modules/2.4.18-14/build/include/net/ip.h: In function `ip_tr_mc_map': /lib/modules/2.4.18-14/build/include/net/ip.h:118: warning: unused parameter `addr' /lib/modules/2.4.18-14/build/include/asm/uaccess.h: In function `verify_area': /lib/modules/2.4.18-14/build/include/asm/uaccess.h:62: warning: unused parameter `type'
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