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[Xen-users] segmentation fault in xen nslookup

From: Shahzad Chohan <shahzad.chohan@xxxxxxxxx>

Date: Fri, 29 Jul 2005 10:37:35 +0100

Delivery-date: Fri, 29 Jul 2005 09:36:06 +0000

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Hi Guys, I just managed to get rhel-3-ws working as a domU. The problem is that when I run the following nslookup command I get a segmentaion fault. Can anyone please shed a light on this. I've attached an strace, if it helps. nslookup 10.222.4.233 Segmentation fault [root@rhel-3-ws root]# strace nslookup 10.222.4.233 execve("/usr/bin/nslookup", ["nslookup", "10.222.4.233"], [/* 24 vars */]) = 0 uname({sys="Linux", node="rhel-3-ws", ...}) = 0 brk(0) = 0x80566e8 open("/etc/ld.so.preload", O_RDONLY) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=75053, ...}) = 0 old_mmap(NULL, 75053, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40016000 close(3) = 0 open("/usr/lib/libdns.so.8", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\300\35"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=1021048, ...}) = 0 old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40029000 old_mmap(NULL, 1021244, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4002a000 old_mmap(0x40120000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0xf6000) = 0x40120000 old_mmap(0x40123000, 1340, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40123000 close(3) = 0 open("/lib/libcrypto.so.4", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\260\250"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=971612, ...}) = 0 old_mmap(NULL, 984792, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40124000 old_mmap(0x40200000, 69632, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0xdc000) = 0x40200000 old_mmap(0x40211000, 14040, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40211000 close(3) = 0 open("/usr/lib/libisc.so.4", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0Pw\0\000"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=216216, ...}) = 0 old_mmap(NULL, 215168, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40215000 old_mmap(0x40249000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x34000) = 0x40249000 close(3) = 0 open("/lib/libnsl.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0000<\0\000"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=91368, ...}) = 0 old_mmap(NULL, 85184, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4024a000 old_mmap(0x4025c000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x11000) = 0x4025c000 old_mmap(0x4025d000, 7360, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x4025d000 close(3) = 0 open("/lib/tls/libpthread.so.0", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\300F\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=97644, ...}) = 0 old_mmap(NULL, 64788, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4025f000 old_mmap(0x4026c000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0xc000) = 0x4026c000 old_mmap(0x4026d000, 7444, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x4026d000 close(3) = 0 open("/lib/tls/libc.so.6", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0000X\1\000"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=1563240, ...}) = 0 old_mmap(NULL, 1272460, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4026f000 old_mmap(0x403a0000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x130000) = 0x403a0000 old_mmap(0x403a3000, 10892, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x403a3000 close(3) = 0 open("/lib/libdl.so.2", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0P\32\0\000"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=14728, ...}) = 0 old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x403a6000 old_mmap(NULL, 12148, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x403a7000 old_mmap(0x403a9000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x1000) = 0x403a9000 close(3) = 0 open("/usr/lib/libz.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\340\31"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=52584, ...}) = 0 old_mmap(NULL, 55564, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x403aa000 old_mmap(0x403b6000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0xb000) = 0x403b6000 close(3) = 0 old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x403b8000 set_thread_area({entry_number:-1 -> -1, base_addr:0x403b8080, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = -1 ENOSYS (Function not implemented) modify_ldt(1, {entry_number:0, base_addr:0x403b8080, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}, 16) = 0 munmap(0x40016000, 75053) = 0 set_tid_address(0x403b80c8) = -1 ENOSYS (Function not implemented) rt_sigaction(SIGRTMIN, {0x40263620, [], SA_RESTORER|SA_SIGINFO, 0x40269df0}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN], NULL, 8) = 0 getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0 rt_sigaction(SIGINT, {0x40233290, ~[RTMIN], SA_RESTORER, 0x40269df8}, NULL, 8) = 0 rt_sigaction(SIGTERM, {0x40233290, ~[RTMIN], SA_RESTORER, 0x40269df8}, NULL, 8) = 0 rt_sigaction(SIGPIPE, {SIG_IGN}, NULL, 8) = 0 rt_sigaction(SIGHUP, {SIG_DFL}, NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, [HUP INT TERM], NULL, 8) = 0 getpid() = 1561 socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 3 close(3) = 0 socket(PF_INET6, SOCK_STREAM, IPPROTO_IPrequ) = -1 EAFNOSUPPORT (Address family not supported by protocol) futex(0x402491f0, FUTEX_WAKE, 2147483647) = -1 ENOSYS (Function not implemented) brk(0) = 0x80566e8 brk(0x80776e8) = 0x80776e8 brk(0) = 0x80776e8 brk(0x8078000) = 0x8078000 mmap2(NULL, 8392704, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x403b9000 mprotect(0x403b9000, 4096, PROT_NONE) = 0 clone(child_stack=0x40bb9b08, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID|CLONE_DETACHED, parent_tidptr=0x40bb9bf8, {entry_number:0, base_addr:0x40bb9bb0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}, child_tidptr=0x40bb9bf8) = 1562 --- SIGSEGV (Segmentation fault) @ 0 (0) --- +++ killed by SIGSEGV +++ Thanks in advance Shaz _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users

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