port-shark/52102: shark: ffs_newvnode panic when unpacking sets installing -current

[flxd%NetBSD.org@localhost]

>Number:         52102
>Category:       port-shark
>Synopsis:       shark: ffs_newvnode panic when unpacking sets installing -current
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-shark-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Mar 22 19:15:00 +0000 2017
>Originator:     Felix Deichmann
>Release:        7.99.66 (from around 2017-03-21)
>Organization:
>Environment:
NetBSD 7.99.66 (INSTALL) shark
>Description:
sysinst/tar/ffs_newvnode panics when trying to unpack the first set during installation of -current on shark (netbsd-INSTALL.aout kernel).
The set has been downloaded via HTTP before, nothing happened yet.


     Status: Running
    Command: progress -zf /targetroot/usr/INSTALL/kern-GENERIC.tgz tar --chroot
-xhepf -

--------------------------------------------------------------------------------
  0% |                                   |  9216        8.91 KiB/s    15:55 ETAffs_newvnode: dup alloc ino=2 on /targetroot: mode 41ed/41ed gen 5882b71e/5882b71e size 200 blocks 4
Stopped in pid 89.1 (tar) at    f00091cc:       mov     pc, r14
db> bt
0xf34abbbc: f010894c
0xf34abbd4: f0108b14
0xf34abc64: f00a15f4
0xf34abca4: f0140c0c
0xf34abcec: f00aab6c
0xf34abd14: f00aadd4
0xf34abd3c: f0146ac0
0xf34abe0c: f0141e7c
0xf34abe8c: f013be10
0xf34abebc: f013bf48
0xf34abee4: f013c014
0xf34abf5c: f000d0ac
0xf34abfac: f000d20c
db>


The "put together" bt using the corresponding netbsd.gdb gives:

0xf010894c <vpanic+12>
0xf0108b14 <snprintf>
0xf00a15f4 <ffs_newvnode+344>
0xf0140c0c <vcache_new+120>
0xf00aab6c <ufs_makeinode+60>
0xf00aadd4 <ufs_create+56>
0xf0146ac0 <VOP_CREATE+56>
0xf0141e7c <vn_open+252>
0xf013be10 <do_open+168>
0xf013bf48 <do_sys_openat+132>
0xf013c014 <sys_open+48>
0xf000d0ac <syscall+312>
0xf000d20c <swi_handler+208>


netbsd.gdb available...!
>How-To-Repeat:
see above
>Fix: