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attach bug

daemon@ATHENA.MIT.EDU (Greg Hudson)
Thu Mar 25 19:27:05 2004

Date: Thu, 25 Mar 2004 19:26:57 -0500
Message-Id: <200403260026.i2Q0QvdU002078@error-messages.mit.edu>
From: Greg Hudson <ghudson@MIT.EDU>
To: testers@MIT.EDU

In proto-9.3, logins hang in attach.  Here is the backtrace; frame 0
never appears to complete.  As a quick workaround, I tried sticking an
"export LD_ASSUME_KERNEL=2.4.1" into /etc/X11/prefdm, and it made it
into the environment of the attach process, but that didn't seem to
affect the outcome; the attach still hangs.  Downgrading to the 9.2.x
athena-attach was a successful workaround, as one might expect (since
attach is linked using athstatic).

#0  0xb7502120 in malloc_consolidate () from /lib/tls/libc.so.6
#1  0xb7502008 in _int_free () from /lib/tls/libc.so.6
#2  0xb7500c88 in free () from /lib/tls/libc.so.6
#3  0x08085776 in krb5_free_cred_contents (context=0x812be70, val=0x812c7e8)
    at kfree.c:168
#4  0x0808593c in krb5_free_creds (context=0x812be70, val=0x812c7e8)
    at kfree.c:220
#5  0x0804ee77 in afs_maybe_auth_to_cell (context=0x810be68,
    name=0x810c310 "ghudson", cell=0xbfffccb0 "athena.mit.edu", op=7, force=0)
    at afs.c:440
#6  0x0804eae9 in afs_auth (context=0x810be68, at=0x810c2d0, mode=119, op=7)
    at afs.c:345
#7  0x0804fc5b in attach_attachent (context=0x810be68, at=0x810c2d0,
    authmode=119, options=16, mountoptions=0x0) at attach.c:202
#8  0x0804fb36 in locker_attach_attachent (context=0x810be68, at=0x810c2d0,
    authmode=0, options=16, mountoptions=0x0) at attach.c:164
#9  0x0804f8a0 in locker_attach (context=0x810be68,
    filesystem=0xbffffe8a "ghudson", mountpoint=0x0, authmode=0, options=16,
    mountoptions=0x0, atp=0xbfffd710) at attach.c:68
#10 0x0804c325 in attach_main (argc=6, argv=0xbfffd864) at attach.c:235
#11 0x0804b194 in main (argc=6, argv=0xbfffd864) at suite.c:68

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