On Mon, Sep 17, 2007 at 11:28:58AM +0400, Boris Samorodov wrote:
quoted text > Hi!
>=20
>=20
> I can't use dump at -CURRENT with twa. The process goes to sbwait
> state forever. Here are the details.
>=20
> $ uname -a
> FreeBSD test.ipt.ru 7.0-CURRENT FreeBSD 7.0-CURRENT #0: Sat Sep 15 19:37:=
17 MSD 2007 bsam@test.ipt.ru:/usr/obj/usr/src/sys/TEST amd64
quoted text >=20
> The controller:
> twa0: <3ware 9000 series Storage Controller> port 0x3000-0x30ff mem 0xd80=
00000-0xd9ffffff,0xda300000-0xda300fff irq 16 at device 0.0 on pci8
quoted text > twa0: [GIANT-LOCKED]
> twa0: [ITHREAD]
> twa0: INFO: (0x04: 0x0053): Battery capacity test is overdue:=20
> twa0: INFO: (0x15: 0x1300): Controller details:: Model 9650SE-8LPML, 8 po=
rts, Firmware FE9X 3.06.00.005, BIOS BE9X 3.06.00.002
quoted text >=20
> Two disks at stripe:
> da1 at twa0 bus 0 target 1 lun 0
> da1: <AMCC 9650SE-8LP DISK 3.06> Fixed Direct Access SCSI-5 device=20
> da1: 100.000MB/s transfers
> da1: 476816MB (976519168 512 byte sectors: 255H 63S/T 60785C)
>=20
> Mounted as:
> /dev/da1 /s ufs rw 2 2
>=20
> The command:
> $ dump -0Luan -f s.dump /s
> DUMP: Date of this level 0 dump: Mon Sep 17 10:26:21 2007
> DUMP: Date of last level 0 dump: the epoch
> DUMP: Dumping snapshot of /dev/da1 (/s) to s.dump
> DUMP: mapping (Pass I) [regular files]
> DUMP: mapping (Pass II) [directories]
> DUMP: estimated 432054 tape blocks.
> DUMP: dumping (Pass III) [directories]
> DUMP: dumping (Pass IV) [regular files]
> [wait here forever]
>=20
> The relevant part of iostat -w 10 and top:
> -----
> tty da0 da1 cpu
> tin tout KB/t tps MB/s KB/t tps MB/s us ni sy in id
> 0 231 16.00 0 0.01 16.00 152 2.37 0 0 1 0 99
> 0 257 16.00 1 0.02 16.00 147 2.29 0 0 1 0 99
> 0 310 16.00 1 0.01 16.00 146 2.28 0 0 1 0 99
> 0 265 16.00 0 0.01 16.00 152 2.38 0 0 1 0 99
> 0 442 16.00 0 0.00 15.98 299 4.66 0 0 1 0 99
> 0 620 15.54 3 0.04 3.46 1999 6.76 0 0 2 1 96
> 0 363 16.00 0 0.01 2.77 5141 13.90 0 0 5 2 93
> 0 309 0.00 0 0.00 3.22 114 0.36 0 0 0 0 100
> 0 260 16.00 1 0.01 0.00 0 0.00 0 0 0 0 100
> 0 263 0.00 0 0.00 0.00 0 0.00 0 0 0 0 100
>=20
> last pid: 74610; load averages: 0.01, 0.06, 0.01 up 1+09:53:34 10=
:32:34
quoted text > 98 processes: 98 sleeping
> CPU states: 0.0% user, 0.0% nice, 0.3% system, 0.0% interrupt, 99.6% =
idle
quoted text > Mem: 113M Active, 2374M Inact, 337M Wired, 480K Cache, 214M Buf, 4935M Fr=
ee
quoted text > Swap: 4096M Total, 4096M Free
>=20
> PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
> 74595 duser 1 20 0 28248K 26000K pause 5 0:01 0.00% dump
> 74596 duser 1 20 0 28248K 26000K pause 2 0:01 0.00% dump
> 74594 duser 1 20 0 28248K 26000K pause 5 0:01 0.00% dump
> 74593 duser 1 4 0 28248K 26020K sbwait 7 0:01 0.00% dump
> 74530 duser 1 8 0 28248K 26000K wait 6 0:01 0.00% dump
> 74443 duser 1 8 0 6216K 1904K wait 5 0:00 0.00% sh
> -----
>=20
> Gdb shows nothing interesting:
> # gdb dump 74593
> GNU gdb 6.1.1 [FreeBSD]
> Copyright 2004 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you =
are
quoted text > welcome to change it and/or distribute copies of it under certain conditi=
ons.
quoted text > Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB. Type "show warranty" for detail=
s.
quoted text > This GDB was configured as "amd64-marcel-freebsd"...(no debugging symbols=
found)...
quoted text > Attaching to program: /sbin/dump, process 74593
> Reading symbols from /lib/libc.so.7...(no debugging symbols found)...done.
> Loaded symbols for /lib/libc.so.7
> Reading symbols from /libexec/ld-elf.so.1...(no debugging symbols found).=
..done.
quoted text > Loaded symbols for /libexec/ld-elf.so.1
> 0x000000080071b34a in read () from /lib/libc.so.7
>=20
> Shall I do some more debugging? Thanks!
Please, verify that you have rev. 1.39 of sys/kern/subr_sleepqueue.c.
