i cvsup'd last night, and now i tried portupdate -a -f and debugging
build problems with libtool i found that on my system i can make perl spin
and consume 100% of a CPU just by:
perl -pe s/foo/bar/g /tmp
(turs out i can do this with any perl command, even perl --version...)
i also can't kill this process, or attach to it with gdb. i can get an
strace though which looks like:
execve(8AF3^D(HF3^E(B0F3BFBFF4BFBF^DF4BFBFE1^E(^?^R
, [], [/* 0 vars */]) = -1 ENOENT (No such file or directory)
execve(, [], [/* 0 vars */]) = -1 ENOENT (No such file or
directory)
execve(, [], [/* 0 vars */]) = -1 ENOENT (No such file or
directory)
execve(, [], [/* 0 vars */]) = 0
mmap(0, 2664, PROT_READ|PROT_WRITE, MAP_ANON, -1, 0) = 0x28061000
munmap(0x28061000, 2664)= 0
__sysctl([sysctl.debug], 2, , [0], NULL, 0) = 0
mmap(0, 32768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, -1, 0) =
0x28061000
geteuid(0x28049000) = 0
getuid()= 0 (euid 0)
getegid(0x28049000) = 0
getgid()= 0 (egid 0)
open(/var/run/ld-elf.so.hints, O_RDONLY) = 3
read(3, object\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0..., 128)
= 128
lseek(3, 549755813888, SEEK_SET)= 128
read(3, /usr/lib:/usr/lib/compat:/usr/X1..., 55) = 55
close(3)= 0
access(/usr/lib/libc.so.5, F_OK) = 0
open(/usr/lib/libc.so.5, O_RDONLY)= 3
fstat(3, {st_mode=0, st_size=0, ...}) = 0
read(3, \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0..., 4096)
= 409
6
mmap(0, 794624, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x28069000
mmap(0x28113000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3,
0xa9
000) = 0x28113000
mmap(0x28118000, 77824, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANON, -1
, 0) = 0x28118000
close(3)= 0
mmap(0, 216, PROT_READ|PROT_WRITE, MAP_ANON, -1, 0) = 0x2812b000
munmap(0x2812b000, 216) = 0
mprotect(0x28069000, 696320, PROT_READ|PROT_WRITE|PROT_EXEC) = 0
mmap(0, 18824, PROT_READ|PROT_WRITE, MAP_ANON, -1, 0) = 0x2812b000
munmap(0x2812b000, 18824) = 0
mprotect(0x28069000, 696320, PROT_READ|PROT_EXEC) = 0
sigaction(SIGILL, {SIG_DFL}, {SIG_DFL}) = 0
sigprocmask(SIG_BLOCK, NULL, [])= 0
sigaction(SIGILL, {SIG_DFL}, NULL) = 0
sigprocmask(SIG_BLOCK, ~[ILL TRAP ABRT EMT FPE BUS SEGV SYS], []) = 0
sigprocmask(SIG_SETMASK, [], NULL) = 0
execve(8AF3^D(HF3^E(B8F3BFBFDF4BFBF^LF4BFBFE1^E(^?^R
, [], [/* 0 vars */]) = -1 ENOENT (No such file or directory)
execve(, [], [/* 0 vars */]) = -1 ENOENT (No such file or
directory)
execve(, [], [/* 0 vars */]) = -1 ENOENT (No such file or
directory)
execve(, [], [/* 0 vars */]) = -1 ENOENT (No such file or
directory)
execve(, [], [/* 0 vars */]) = -1 ENOENT (No such file or
directory)
execve(, [], [/* 0 vars */]) = 0
(wash, rinse, repeat endlessly..)
strace sometimes fails with:
PIOCWSTOP: Input/output error
ahhh... the plot thickens, now its stopped consuming CPU, strace does
this:
coredump# strace -p 4432
--- SIGINT (Interrupt) ---
--- SIGINT (Interrupt) ---
coredump# strace -p 4432
strace: open(/proc/..., ...): No such file or directory
trouble opening proc file
coredump# strace -p 4432
strace: open(/proc/..., ...): No such file or directory
trouble opening proc file
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