Well, stepping in GDB line-by-line I can see that we segfault at #1594 in filesys.c
1588            if (!one_vfsmount)
(gdb)
1589                    FREEBUF(mntlist);
(gdb)
1590            if (VALID_STRUCT(mount))
(gdb)
1593                    FREEBUF(vfsmount_buf);
(gdb)
1594 FREEBUF(super_block_buf);
(gdb)
1595    }
(gdb)
0x0000000000000000 in ?? ()
That is, there is definitely memory corruption somewhere and 'mount' is most
probably just a victim.
Alex
On 2018-05-17 09:36 AM, Alex Sidorenko wrote:
 crash> mount
     VFSMOUNT         SUPERBLK     TYPE   DEVNAME   DIRNAME
 ffff88101c916080 ffff88081c837400 rootfs rootfs    /
 Program received signal SIGSEGV, Segmentation fault.
 0x0000000000000000 in ?? ()
 (gdb) bt
 Python Exception <type 'exceptions.ImportError'> No module named
gdb.frames:
 #0  0x0000000000000000 in ?? ()
 #1  0x0000000000000000 in ?? ()  
-- 
Alex Sidorenko	Expert Technologist
ERT Linux	HPE Pointnext
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