Another HAMMER crash

[Gergo Szakal <bastyaelvtars@xxxxxxxxx>]

Self-explanatory:

# mount_hammer -T 0000000130ad51bd /dev/ad0s1f /usr
ASOF
panic: assertion: volume->io.lock.refs == 0 in hammer_unload_volume
Trace beginning at frame 0xcad43998
panic(cad439bc,c156e348,c1765aac,cad2b000,cad439d4) at panic+0x8c
panic(c051fcb7,c05434c4,c05077f9,1001,c156e348) at panic+0x8c
hammer_unload_volume(c156e348,0,0,0,0) at hammer_unload_volume+0x6c
hammer_vol_rb_tree_RB_SCAN(cad2b00c,0,c043776d,0,cad2b02c) at
hammer_vol_rb_tree_RB_SCAN+0xad hammer_free_hmp
(cad2b340,c156e348,1,2,bfbffb2d) at hammer_free_hmp+0x166
hammer_vfs_mount(c9b048d8,bfbffb39,bfbff8f0,c15258c8,c1682528) at
hammer_vfs_mount+0x84a sys_mount(cad43cf0,6,0,0,c9b04218) at sys_mount
+0x66c syscall2(cad43d40) at syscall2+0x1e9 Xint0x80_syscall() at
Xint0x80_syscall+0x36 Debugger("panic")
Stopped at      Debugger+0x34:  movb    $0,in_Debugger.3949

I cannot get dumps for some reason. I 'panic' and 'call dumpsys' like
crazy but it just does not work.

-- 
Gergo Szakal MD <bastyaelvtars@gmail.com>
University Of Szeged, HU
Faculty Of General Medicine

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