Wireless Infiniband?


On one of my hosts, ifup bond1 or even ifup ib0 would hang today.

Check out the error trace:

[root@waxh0004 ~]# strace /sbin/iwconfig bond1
execve(“/sbin/iwconfig”, [“/sbin/iwconfig”, “bond1”], [/* 20 vars */]) = 0
brk(0) = 0x9de4000
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7fe9000
access(“/etc/ld.so.preload”, R_OK) = -1 ENOENT (No such file or directory)
open(“/etc/ld.so.cache”, O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=21997, …}) = 0
mmap2(NULL, 21997, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7fe3000
close(3) = 0
open(“/lib/libiw.so.28”, O_RDONLY) = 3
read(3, “\177ELF\1\1\1\3\3\1@5E004″…, 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=29440, …}) = 0
mmap2(0x452000, 30788, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x452000
mmap2(0x459000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6) = 0x459000
close(3) = 0
open(“/lib/i686/nosegneg/libm.so.6”, O_RDONLY) = 3
read(3, “\177ELF\1\1\1\3\3\1\20\304B004″…, 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=208368, …}) = 0
mmap2(0x429000, 155760, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x429000
mmap2(0x44e000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x24) = 0x44e000
close(3) = 0
open(“/lib/i686/nosegneg/libc.so.6”, O_RDONLY) = 3
read(3, “\177ELF\1\1\1\3\3\1\320_/004″…, 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1619048, …}) = 0
mmap2(0x2e0000, 1336740, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x2e0000
mmap2(0x421000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x141) = 0x421000
mmap2(0x424000, 9636, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x424000
close(3) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7fe2000
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7fe1000
set_thread_area({entry_number:-1 -> 6, base_addr:0xb7fe2b50, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0
mprotect(0x44e000, 4096, PROT_READ) = 0
mprotect(0x421000, 8192, PROT_READ) = 0
mprotect(0x2dc000, 4096, PROT_READ) = 0
munmap(0xb7fe3000, 21997) = 0
socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 3
ioctl(3, SIOCGIWNAME

I assume this is either because of something blocking this special socket access or because I haven’t yet rebooted this server following the Oracle VM 2.2.1 update.

Now that I can’t even log on, it seems about time, or rather a short bit too late. 🙂

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