weekly report of June 24

zhixiang yu zxyu.core at gmail.com
Sun Jun 30 11:54:55 UTC 2013


Hi Alexander,

Due to personally reason, I started to work on my project from June
24. Here is the weekly report.

1. Got my new powerful PC which is powerd by the new intel haswell
arch and installed freebsd 10.0 current amd64 20130623-r252101.

1.1 found freebsd xhci driver bug, need to pass
hw.usb.xhci.xhci_port_route=-1 to workaround this issue. Otherwise no
any usb port will work

1.2 found one fs bug? kernel will complain as the following when
shutdown or remove files.


lock order reversal:
 1st 0xfffffe0003582418 ufs (ufs) @ /usr/src/sys/kern/vfs_mount.c:1236
 2nd 0xfffffe0003629240 devfs (devfs) @ /usr/src/sys/kern/vfs_subr.c:2099
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xffffff80002335b0
kdb_backtrace() at kdb_backtrace+0x39/frame 0xffffff8000233660
witness_checkorder() at witness_checkorder+0xd4f/frame 0xffffff80002336f0
__lockmgr_args() at __lockmgr_args+0x6f2/frame 0xffffff8000233820
vop_stdlock() at vop_stdlock+0x3c/frame 0xffffff8000233840
VOP_LOCK1_APV() at VOP_LOCK1_APV+0xf5/frame 0xffffff8000233870
_vn_lock() at _vn_lock+0xab/frame 0xffffff80002338e0
vget() at vget+0x70/frame 0xffffff8000233930
devfs_allocv() at devfs_allocv+0xfd/frame 0xffffff8000233980
devfs_root() at devfs_root+0x43/frame 0xffffff80002339b0
dounmount() at dounmount+0x2d7/frame 0xffffff8000233a20
vfs_unmountall() at vfs_unmountall+0x61/frame 0xffffff8000233a50
kern_reboot() at kern_reboot+0x548/frame 0xffffff8000233ac0
sys_reboot() at sys_reboot+0x58/frame 0xffffff8000233ae0
amd64_syscall() at amd64_syscall+0x265/frame 0xffffff8000233bf0
Xfast_syscall() at Xfast_syscall+0xfb/frame 0xffffff8000233bf0
--- syscall (55, FreeBSD ELF64, sys_reboot), rip = 0x40ecdc, rsp =
0x7fffffffd6d8, rbp = 0x7fffffffd7c0 ---


2. tried bhyve on the haswell platform, everything seems fine.

3. read the ahci datasheet again

Thanks


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