Messages in this thread | | | Date | Tue, 3 Jun 1997 18:36:12 +0200 | From | Philippe Strauss <> | Subject | Re: New 2.0.31 pre patch is out |
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On Jun 2, David S. Miller wrote
[snip]
> 4) Fix one of the remaining buffer cache bugs, there appears to be > one small one left but more information from people who can trigger > it is needed.
I'm part of the peoples that can easely trigger this problem with badblocks -w /dev/sd<empty_partition> num_o_blocks.
The empty partition is 860MB on a 4-5 MB/s Seagate ST31200N. Scsi adapter is a cheap ncr810. Driver is Gerard's latest (1.18i, not in 2.0.30-pre2). Got also the neat non-exec-stack patch. That's all for the non-standard patches.
Well, pre-2 doesn't change anything over pre-1. Starting badblocks, swap trash like crazy. Machine become useless, until a Ctrl-C in sent to badblocks. After that, my ps aux looks like that:
USER PID %CPU %MEM VSZ RSS TT STAT START TIME COMMAND daemon 126 0.0 0.0 828 0 ? SW 18:12 0:00 rpc.portmap daemon 198 0.0 0.0 856 0 ? SW 18:12 0:00 atd philou 207 0.1 1.5 1644 488 1 S 18:12 0:00 -bash philou 221 0.0 1.3 972 420 1 R 18:14 0:00 ps aux proxy 163 1.1 1.3 2468 416 ? S 18:12 0:01 squid -D -s -f /etc proxy 164 0.0 0.0 840 0 ? SW 18:12 0:00 dnsserver proxy 165 0.0 0.0 840 0 ? SW 18:12 0:00 dnsserver proxy 166 0.0 0.0 840 0 ? SW 18:12 0:00 dnsserver proxy 167 0.0 0.0 840 0 ? SW 18:12 0:00 dnsserver proxy 168 0.0 0.0 840 0 ? SW 18:12 0:00 dnsserver proxy 169 0.0 0.0 928 0 ? SW 18:12 0:00 ftpget proxy 170 0.0 0.0 792 0 ? SW 18:12 0:00 unlinkd qmaill 194 0.0 0.0 816 0 ? SW 18:12 0:00 splogger qmailq 197 0.0 0.0 808 0 ? SW 18:12 0:00 qmail-clean qmailr 196 0.0 0.0 812 0 ? SW 18:12 0:00 qmail-rspawn qmails 191 0.0 0.0 852 0 ? SW 18:12 0:00 qmail-send root 1 1.1 0.0 816 0 ? SW 18:12 0:01 init root 2 0.9 0.0 0 0 ? SW 18:12 0:01 kflushd root 3 0.0 0.0 0 0 ? SW< 18:12 0:00 kswapd root 9 0.0 0.1 792 44 ? S 18:12 0:00 update root 29 0.0 0.0 804 0 ? SW 18:12 0:00 kerneld root 112 0.1 0.0 836 0 ? SW 18:12 0:00 syslogd root 114 0.2 0.0 948 0 ? SW 18:12 0:00 klogd root 128 0.0 0.0 812 0 ? SW 18:12 0:00 inetd root 131 0.0 0.0 1392 0 ? SW 18:12 0:00 named root 134 0.1 0.6 1468 208 ? S 18:12 0:00 /usr/sbin/apache root 142 0.0 0.0 820 0 ? SW 18:12 0:00 gpm root 145 0.0 0.0 812 0 ? SW 18:12 0:00 tcplogd root 147 0.0 0.0 804 0 ? SW 18:12 0:00 icmplogd root 152 0.0 0.0 832 0 ? SW 18:12 0:00 lpd root 158 0.0 0.0 1552 0 ? SW 18:12 0:00 RunCache root 171 0.0 0.1 876 32 ? S 18:12 0:00 (pinger) root 174 1.5 0.0 1032 0 ? SW 18:12 0:01 sshd root 180 0.3 0.6 1048 204 ? S < 18:12 0:00 /usr/sbin/xntpd root 184 0.1 0.2 880 72 ? S 18:12 0:00 /usr/sbin/rpc.nfsd root 187 0.1 0.2 848 68 ? S 18:12 0:00 /usr/sbin/rpc.mount root 195 0.0 0.0 812 0 ? SW 18:12 0:00 qmail-lspawn root 201 0.0 0.0 832 0 ? SW 18:12 0:00 cron root 208 0.0 0.0 808 0 2 SW 18:12 0:00 getty root 209 0.0 0.0 808 0 3 SW 18:12 0:00 getty root 210 0.0 0.0 808 0 4 SW 18:12 0:00 getty root 211 0.1 1.1 1644 356 5 S 18:12 0:00 -bash root 212 0.0 0.0 808 0 6 SW 18:12 0:00 getty root 217 0.3 0.6 996 204 ? S 18:13 0:00 nmbd www-data 137 0.0 0.5 1468 168 ? S 18:12 0:00 apache www-data 138 0.0 0.5 1468 168 ? S 18:12 0:00 apache www-data 139 0.0 0.5 1468 168 ? S 18:12 0:00 apache www-data 140 0.0 0.5 1468 168 ? S 18:12 0:00 apache www-data 141 0.0 0.5 1468 168 ? S 18:12 0:00 apache
Nothing much stay resident after just 10 sec. of badblocks abuse.
Got 32MB physical, 68MB swap. P5 166, 430FX chipset.
E2fsprogs is 1.10-2 (Debian second release). System is otherwise latest bleeding-edge Debian (hamm, future Debian 2.0).
If I could be of any help, that's with pleasure.
Cheers.
-- Philippe Strauss <philou@lili.urbanet.ch> Urbanet SA, Vallombreuse 51, 1004 Lausanne -- 021 / 625.28.14
Homepage & PGP key: http://lili.urbanet.ch
Never insult an alligator until you've crossed the river. --
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