From: Pat LaVarre <p.lavarre@ieee.org>
To: linux-fsdevel@vger.kernel.org, linux_udf@hpesjro.fc.hp.com
Subject: Re: zeroes read back more often than appended
Date: 08 Oct 2003 11:02:20 -0600 [thread overview]
Message-ID: <1065632539.6625.52.camel@patehci2> (raw)
In-Reply-To: <1065631289.6625.34.camel@patehci2>
> > ... 2.6.0-test6 ...
> > CPU0: Intel(R) Pentium(R) 4 CPU 2.40GHz stepping 09
> > CPU1: Intel(R) Pentium(R) 4 CPU 2.40GHz stepping 09
> > ... read more zeroes than appended ...
>
> whats going on in 2.6.0-test6-smp ...
I will confirm or deny that turning off my second cpu keeps zeroes from
reading back after fopen, repeat fwrite, fclose file ...
... if/when I learn how to turn off my second cpu.
Meanwhile, til I know better, I will blame `make defconfig` for having
turned on my second cpu. Indeed immediately from that beginning, I see
`grep -i smp .config` followed by `make xconfig` suggests I try the
one-click "Processor type and features" "Symmetric multi-processing
support" = No patch:
-CONFIG_LOG_BUF_SHIFT=15
-CONFIG_NR_CPUS=8
-CONFIG_SMP=y
-CONFIG_X86_EXTRA_IRQS=y
-CONFIG_X86_FIND_SMP_CONFIG=y
-CONFIG_X86_HT=y
-CONFIG_X86_IO_APIC=y
-CONFIG_X86_LOCAL_APIC=y
-CONFIG_X86_MCE_P4THERMAL=y
-CONFIG_X86_MPPARSE=y
-CONFIG_X86_SMP=y
-CONFIG_X86_TRAMPOLINE=y
+# CONFIG_FTAPE is not set
+# CONFIG_SMP is not set
+# CONFIG_X86_UP_APIC is not set
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_LOG_BUF_SHIFT=14
I will try this patch and report back.
Pat LaVarre
next prev parent reply other threads:[~2003-10-08 17:02 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-07 19:02 zeroes read back more often than appended Pat LaVarre
2003-10-07 20:54 ` Pat LaVarre
2003-10-08 3:49 ` Ben Fennema
2003-10-08 16:41 ` Pat LaVarre
2003-10-08 16:47 ` editable udf metadata Pat LaVarre
2003-10-08 17:51 ` Pat LaVarre
2003-10-08 18:09 ` big-endian udfct_1_0r2 Pat LaVarre
2003-10-08 18:30 ` Matthew Wilcox
[not found] ` <3F8472FE.9040403@lougher.demon.co.uk>
2003-10-08 19:49 ` Matthew Wilcox
2003-10-08 20:43 ` Phillip Lougher
2003-10-21 21:54 ` editable udf metadata Pat LaVarre
2003-10-21 23:17 ` Pat LaVarre
2003-10-23 16:06 ` Pat LaVarre
2003-10-24 21:40 ` Pat LaVarre
2003-10-22 8:15 ` same page access Mark B
2003-10-22 11:21 ` Matthew Wilcox
2003-10-22 17:09 ` Mark B
2003-10-22 17:10 ` Matthew Wilcox
2003-10-08 17:02 ` Pat LaVarre [this message]
2003-10-08 17:06 ` toggling smp clears x86_mce_p4thermal of make xconfig Pat LaVarre
2003-10-08 17:21 ` zeroes read back more often than appended Pat LaVarre
2003-10-08 16:46 ` soft trace of read/write of drivers/block/loop.c Pat LaVarre
2003-10-08 20:32 ` zeroes read back more often than appended Pat LaVarre
2003-10-09 20:54 ` Pat LaVarre
2003-10-10 0:52 ` Pat LaVarre
2003-10-10 16:39 ` Pat LaVarre
2003-10-10 18:15 ` Pat LaVarre
2003-10-14 0:38 ` Pat LaVarre
2003-10-14 1:48 ` Pat LaVarre
2003-10-20 23:20 ` Pat LaVarre
2003-10-21 14:47 ` Pat LaVarre
2003-10-21 16:46 ` Pat LaVarre
2003-10-21 18:44 ` Pat LaVarre
2003-10-23 18:52 ` Pat LaVarre
2003-10-27 21:55 ` Pat LaVarre
-- strict thread matches above, loose matches on Subject: below --
2003-11-20 16:41 Pat LaVarre
2003-11-27 0:45 ` Pat LaVarre
2003-11-28 18:20 ` Pat LaVarre
2003-11-28 18:29 ` Pat LaVarre
2003-12-11 18:42 Pat LaVarre
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