[linux-help] Re: Weird Opera problem

[bruce <bbales@xxxxxxx>]

On Wednesday 04 December 2002 08:43 am, you wrote:
>
> strace -f opera
>
> and look at the last page or two of output before it crashes.

Well, strace sure dumps out a lot of info, mostly 
incomprehesible to me.  Several runs all end with something 
like that below.  Only two lines stand out to me:  (1) the next 
to last line where strace stops scrolling.  The interrupted 
call may occur when I click on opera's continue button.

pid  5648] <... poll resumed> [{fd=9, events=POLLIN}], 1, 2000) 
= -1 EINTR (Interrupted system call)

and (2) the line which prints about a minute later as the 
system halts, containing "segmentation fault."  

write(2, "/usr/bin/opera: line 72:  5613 S"..., 
67/usr/bin/opera: line 72:  5613 Segmentation fault      $OPERA 
"$@" ) = 67

/usr/bin/opera is only 72 lines long and line 72 reads only

$OPERA "$@"

Could this segmentation fault be the cause of the problem or is 
it just the result of a failed attempt to log the failure?

In the copy below, I have marked the beginning of each line 
with an @ mark since I'm set up for 60 character lines.

@[pid  5649] recvfrom(12, 
"\206\323\205\200\0\1\0\1\0\6\0\6\3www\ncomicspage\3com"..., 
1024, 0, {sin_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("68.12.16.30")}}, [16]) = 332
@[pid  5649] close(12)                   = 0
@[pid  5649] write(8, "\330ePc", 4)      = 4
@[pid  5649] _exit(0)                    = ?
@[pid  5648] <... poll resumed> [{fd=9, events=POLLIN}], 1, 
2000) = -1 EINTR (Interrupted system call)
[pid  5648] --- SIGRT_1 (Real-time signal 1) ---
@<... wait4 resumed> [WIFSIGNALED(s) && WTERMSIG(s) == 
SIGSEGV], 0, NULL) = 5613
@rt_sigprocmask(SIG_BLOCK, [CHLD TTOU], [CHLD], 8) = 0
@rt_sigprocmask(SIG_BLOCK, [CHLD], [CHLD TTOU], 8) = 0
@open("/usr/share/locale/en_US/LC_MESSAGES/libc.mo", O_RDONLY) 
= -1 ENOENT (No such file or directory)
@open("/usr/share/locale/en/LC_MESSAGES/libc.mo", O_RDONLY) = 
-1 ENOENT (No such file or directory)
@write(2, "/usr/bin/opera: line 72:  5613 S"..., 
67/usr/bin/opera: line 72:  5613 Segmentation fault      $OPERA 
"$@"
) = 67
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