Date: Tue, 30 Dec 2003 01:02:49 +0700 (KRAT) From: Eugene Grosbein <eugen@grosbein.pp.ru> To: FreeBSD-gnats-submit@FreeBSD.org Subject: bin/60698: dump(8) runs endless loop Message-ID: <200312291802.hBTI2n1g000732@grosbein.pp.ru> Resent-Message-ID: <200312291810.hBTIADf5038516@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
>Number: 60698
>Category: bin
>Synopsis: dump(8) runs endless loop
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Dec 29 10:10:13 PST 2003
>Closed-Date:
>Last-Modified:
>Originator: Eugene Grosbein
>Release: FreeBSD 4.9-STABLE i386
>Organization:
Svyaz Service JSC
>Environment:
System: FreeBSD grosbein.pp.ru 4.9-STABLE FreeBSD 4.9-STABLE #8: Sun Dec 14 20:25:57 KRAT 2003 eu@grosbein.pp.ru:/usr/local/obj/usr/local/src/sys/DADV i386
CPUTYPE=i686 and no other optimizations
>Description:
Today I've tried to dump(8) my root filesystem:
# dump -f - -a -0 / >/dev/null
DUMP: Date of this level 0 dump: Tue Dec 30 00:47:21 2003
DUMP: Date of last level 0 dump: the epoch
DUMP: Dumping /dev/ad2s1a (/) to standard output
DUMP: mapping (Pass I) [regular files]
DUMP: mapping (Pass II) [directories]
DUMP: estimated 49039 tape blocks.
DUMP: dumping (Pass III) [directories]
DUMP: dumping (Pass IV) [regular files]
load: 0.20 cmd: dump 578 [running] 0.09u 0.15s 0% 348k
DUMP: 88.93% done, finished in 0:00
load: 0.34 cmd: dump 578 [running] 3.17u 0.78s 15% 380k
DUMP: 305.21% done, finished in 0:00
load: 0.47 cmd: dump 578 [running] 6.29u 1.32s 28% 380k
DUMP: 514.69% done, finished in 0:00
^C DUMP: Interrupt received.
DUMP: Do you want to abort dump?: ("yes" or "no") yes
DUMP: The ENTIRE dump is aborted.
It does not finish if I do not interrupt it.
The same for read-only and read-write mounted root.
According to fsck(8), the filesystem is clean.
Hexdump if dump image written by dump(8) shows that it
repeatedly writes the same 1024 bytes again and again:
# dd if=dump bs=1024 skip=58000 count=1 | env LC_ALL=C hd
00000000 04 00 00 00 cd c9 f0 3f 00 00 00 00 01 00 00 00 |.......?........|
00000010 90 e2 00 00 d6 21 00 00 6c ea 00 00 ea 22 f7 d4 |.....!..l...."..|
00000020 a4 81 01 00 00 00 00 00 ff ff ff ff ff 07 00 00 |................|
00000030 d7 08 da 3f 00 00 00 00 d7 08 da 3f 00 00 00 00 |...?.......?....|
00000040 d7 08 da 3f 00 00 00 00 00 00 00 00 00 00 00 00 |...?............|
00000050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000080 18 0c 00 00 00 00 00 00 40 00 00 00 61 55 ee 1c |........@...aU..|
00000090 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000000a0 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000000b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
000002a0 00 00 00 00 6e 6f 6e 65 00 00 00 00 00 00 00 00 |....none........|
000002b0 00 00 00 00 00 00 00 00 2f 00 00 00 00 00 00 00 |......../.......|
000002c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
000002f0 00 00 00 00 00 00 00 00 2f 64 65 76 2f 61 64 32 |......../dev/ad2|
00000300 73 31 61 00 00 00 00 00 00 00 00 00 00 00 00 00 |s1a.............|
00000310 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000370 00 00 00 00 00 00 00 00 02 00 00 00 00 00 00 00 |................|
00000380 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000400
Some more details about my system:
# disklabel /dev/ad2s1
# /dev/ad2s1:
type: ESDI
disk: ad2s1
label:
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 255
sectors/cylinder: 16065
cylinders: 2609
sectors/unit: 41929587
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0 # milliseconds
track-to-track seek: 0 # milliseconds
drivedata: 0
8 partitions:
# size offset fstype [fsize bsize bps/cpg]
a: 131072 0 4.2BSD 0 0 0 # (Cyl. 0 - 8*)
b: 655360 131072 swap # (Cyl. 8*- 48*)
c: 41929587 0 unused 0 0 # (Cyl. 0 - 2609*)
e: 524288 786432 4.2BSD 0 0 0 # (Cyl. 48*- 81*)
f: 262144 1310720 4.2BSD 0 0 0 # (Cyl. 81*- 97*)
g: 10485760 1572864 4.2BSD 0 0 0 # (Cyl. 97*- 750*)
h: 29870963 12058624 4.2BSD 0 0 0 # (Cyl. 750*- 2609*)
# df -k /
Filesystem 1K-blocks Used Avail Capacity Mounted on
/dev/ad2s1a 63471 48006 10388 82% /
# mount|grep ad2s1a
/dev/ad2s1a on / (ufs, local, noatime)
>How-To-Repeat:
Hmm, I'd like to known how to not repeat as I cannot make dump.
>Fix:
Unknown. Broken dump image may be available to a commiter
on request, compressed size is 13784Kb.
>Release-Note:
>Audit-Trail:
>Unformatted:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200312291802.hBTI2n1g000732>