Panic with some recent changes (between r309016 and r309184)

[Xin Li]

Is this known?

The traceback:

panic: vm_page_assert_xbusied: page 0xfffff807fae225b0 not exclusive
busy @ /usr/src/sys/vm/vm_pager.c:263
cpuid = 5
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame
0xfffffe0a528ea620
vpanic() at vpanic+0x186/frame 0xfffffe0a528ea6a0
kassert_panic() at kassert_panic+0x126/frame 0xfffffe0a528ea710
vm_pager_assert_in() at vm_pager_assert_in+0x6f/frame 0xfffffe0a528ea740
vm_pager_get_pages_async() at vm_pager_get_pages_async+0x26/frame
0xfffffe0a528ea780
vn_sendfile() at vn_sendfile+0xc85/frame 0xfffffe0a528ea9e0
sys_sendfile() at sys_sendfile+0x11a/frame 0xfffffe0a528eaa70
amd64_syscall() at amd64_syscall+0x2f9/frame 0xfffffe0a528eabf0
Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe0a528eabf0
--- syscall (393, FreeBSD ELF64, sys_sendfile), rip = 0x8040eb47a, rsp =
0x7fffffffea58, rbp = 0x7fffffffeb00 ---
KDB: enter: panic


Cheers,

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 801 bytes
Desc: OpenPGP digital signature
URL: <http://lists.freebsd.org/pipermail/freebsd-current/attachments/20161126/6f9e5b1e/attachment.sig>