Re: Screen freezes when launched as normal user

[Juergen Weigert]

On Jul 05, 06 22:48:24 +0900, Stéphane Glondu wrote:
> Juergen Weigert a écrit :
> > Please post the full strace from clone() to SEGV.
> 
> See the attachment.

That looks like one of your system-libraries is at fault.

12673 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
12673 open("/usr/lib/libdb-4.2.so", O_RDONLY) = 4
12673 read(4, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\31\2\0"..., 
640) = 640
12673 fstat(4, {st_mode=S_IFREG|0644, st_size=908464, ...}) = 0
12673 mmap(NULL, 1956376, PROT_READ|PROT_EXEC, MAP_PRIVATE, 4, 0) = 0x2a970a8000
12673 mprotect(0x2a97172000, 1128984, PROT_NONE) = 0
12673 mmap(0x2a971a8000, 909312, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 
4, 0) = 0x2a971a8000
12673 close(4)                          = 0
12673 munmap(0x2a9709e000, 38450)       = 0
12673 open("/usr/lib/sasl2/libsasldb.la", O_RDONLY) = 4
12673 close(4)                          = 0
12673 getdents64(3, /* 0 entries */, 4096) = 0
12673 close(3)                          = 0
12673 --- SIGSEGV (Segmentation fault) @ 0 (0) ---

All of this is not screen code. There is no exec call in the log, so I'll
assume that this is still from the screen binary itself. Could also be
some shell or helper app that does some ldap lookup.

The above snippet suggests that something inside /usr/lib/libdb-4.2.so
caused the crash. No idea when or why this is loaded. 

> 
> > Is a coredump written?
> 
> No.

Without one, I cannot say more details.
Please consult your sysadmin, he should check if the system is in a sane
state.

        cheers,
                Jw.

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