Latest 3.1 development version core dumps while destroying master PFS

[Siju George]

Hi,

I tried to destroy the PFS after unmounting

1. after downgrading
2. with latest dev snapshot usb stick
3. in single user mode
4. after creating a link
DataNew -> @@-1:00008

The system always core dumps.

I guess Matt will be busy working on  HAMMER2 and wonder if i should
keep waiting till the bug is fixed.
Since this is my Main backup Server Should I just re-install the whole
thing and move forward?

Thanks

--Siju


On Wed, Jul 18, 2012 at 4:22 PM, Siju George <sgeorge.ml2 at gmail.com> wrote:
> Hi,
>
> I was destroying a master PFS on the ROOT volume and the system (
> v3.1.0.827.gf6167a5-DEVELOPMENT )core dumped.
> I tried today's latest snapshot and got the same result.
> The Coredump is uploaded to sgeorge at leaf:~/crash/Coredump20120718.tbz
>
> I have reported this through redmine. Is that enough or should I
> notify bugs@ also?
> https://bugs.dragonflybsd.org/issues/2396
>
> Thanks
>
> Siju
>
> panic: assertion "layer2->zone == zone" failed in hammer_blockmap_free
> at /usr/src/sys/vfs/hammer/hammer_blockmap.c:1020
> cpuid = 0
> Trace beginning at frame 0xffffffe09e20f178
> panic() at panic+0x1fb 0xffffffff804bef68
> panic() at panic+0x1fb 0xffffffff804bef68
> hammer_blockmap_free() at hammer_blockmap_free+0x2e5 0xffffffff80691a0c
> hammer_delete_at_cursor() at hammer_delete_at_cursor+0x4e2 0xffffffff806aac62
> hammer_pfs_rollback() at hammer_pfs_rollback+0x26c 0xffffffff806b0b20
> hammer_ioc_destroy_pseudofs() at hammer_ioc_destroy_pseudofs+0x77
> 0xffffffff806b0c6c
> hammer_ioctl() at hammer_ioctl+0x80e 0xffffffff806a5b1e
> hammer_vop_ioctl() at hammer_vop_ioctl+0x58 0xffffffff806be8d3
> vop_ioctl() at vop_ioctl+0x98 0xffffffff8053d244
> vn_ioctl() at vn_ioctl+0xfd 0xffffffff8053a4d9
> fo_ioctl() at fo_ioctl+0x46 0xffffffff804f026e
> mapped_ioctl() at mapped_ioctl+0x493 0xffffffff804f0725
> sys_ioctl() at sys_ioctl+0x1c 0xffffffff804f07be
> syscall2() at syscall2+0x370 0xffffffff807814c1
> Xfast_syscall() at Xfast_syscall+0xcb 0xffffffff8076ae2b
> (null)() at 0 0
> (null)() at 0x723d524553550061 0x723d524553550061
>
> Fatal trap 9: general protection fault while in kernel mode
> cpuid = 0; lapic->id = 00000000
> instruction pointer = 0x8:0xffffffff8077acf9
> stack pointer = 0x10:0xffffffe09e20f010
> frame pointer = 0x10:0xffffffe09e20f028
> code segment = base 0x0, limit 0xfffff, type 0x1b
> = DPL 0, pres 1, long 0, def32 0, gran 1
> processor eflags = interrupt enabled, resume, IOPL = 0
> current process = 957
> current thread = pri 10
> kernel: type 9 trap, code=0
>
> CPU0 stopping CPUs: 0x00000002
> stopped
> Physical memory: 3787 MB
> Dumping 1055 MB: 1040 1024 1008 992 976 960 944 928 912 896 880 864
> 848 832 816 800 784 768 752 736 720 704 688 672 656 640 624 608 592
> 576 560 544 528 512 496 480 464 448 432 416 400 384 368 352 336 320
> 304 288 272 256 240 224 208 192 176 160 144 128 112 96 80 64 48 32 16