[Bug 988374] [NEW] brctl setportprio fails silently

[ecip]

Public bug reported:

Hi, when I issue a brctl setportprio command specifying priorities
highen than 63 the command fails silently, thus the priority of the port
is not changed:

brctl setportprio BRVAL VALSEV 32768

it gives no output and the priority is not changed. If we analyze the
command using strace:

 strace brctl setportprio BRVAL VALSEV 32768
execve("/usr/sbin/brctl", ["brctl", "setportprio", "BRVAL", "VALSEV", "32768"], [/* 17 vars */]) = 0
brk(0)                                  = 0xac6000
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe953afb000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=17295, ...}) = 0
mmap(NULL, 17295, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fe953af6000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`\355\1\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1572232, ...}) = 0
mmap(NULL, 3680296, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fe95355b000
mprotect(0x7fe9536d5000, 2093056, PROT_NONE) = 0
mmap(0x7fe9538d4000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x179000) = 0x7fe9538d4000
mmap(0x7fe9538d9000, 18472, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fe9538d9000
close(3)                                = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe953af5000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe953af4000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe953af3000
arch_prctl(ARCH_SET_FS, 0x7fe953af4700) = 0
mprotect(0x7fe9538d4000, 16384, PROT_READ) = 0
mprotect(0x606000, 4096, PROT_READ)     = 0
mprotect(0x7fe953afd000, 4096, PROT_READ) = 0
munmap(0x7fe953af6000, 17295)           = 0
socket(PF_FILE, SOCK_STREAM, 0)         = 3
brk(0)                                  = 0xac6000
brk(0xae7000)                           = 0xae7000
open("/sys/class/net/VALSEV/brport/priority", O_WRONLY|O_CREAT|O_TRUNC, 0666) = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe953afa000
write(4, "32768\n", 6)                  = -1 ERANGE (Numerical result out of range)
close(4)                                = 0
munmap(0x7fe953afa000, 4096)            = 0
exit_group(0)                           = ?

The release is Ubuntu 10.04 LTS and bridge-utils is 1.4-5ubuntu2.

Regards.

Eduardo

** Affects: bridge-utils (Ubuntu)
     Importance: Undecided
         Status: New

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Title:
  brctl setportprio fails silently

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