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Red Hat Bugzilla – Attachment 149471 Details for
Bug 205720
modinfo on diskdump kernel module is not displaying kernel parameters
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[patch]
linux-2.6.9-diskdump-parmdesc.patch
linux-2.6.9-diskdump-parmdesc.patch (text/plain), 2.10 KB, created by
Nobuhiro Tachino
on 2007-03-07 17:25:09 UTC
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Description:
linux-2.6.9-diskdump-parmdesc.patch
Filename:
MIME Type:
Creator:
Nobuhiro Tachino
Created:
2007-03-07 17:25:09 UTC
Size:
2.10 KB
patch
obsolete
>diff -Npur linux-2.6.9.org/drivers/block/diskdump.c linux-2.6.9/drivers/block/diskdump.c >--- linux-2.6.9.org/drivers/block/diskdump.c 2007-03-07 11:38:33.000000000 -0500 >+++ linux-2.6.9/drivers/block/diskdump.c 2007-03-07 11:39:54.000000000 -0500 >@@ -74,9 +74,33 @@ static int compress = 0; > module_param_named(fallback_on_err, fallback_on_err, bool, S_IRUGO|S_IWUSR); > module_param_named(allow_risky_dumps, allow_risky_dumps, bool, S_IRUGO|S_IWUSR); > module_param_named(block_order, block_order, uint, S_IRUGO|S_IWUSR); >+MODULE_PARM_DESC(block_order, >+ "Specifies the dump-time I/O block size. Default value is 2, " >+ "which sets the I/O block size equal to \"page-size << 2\", or " >+ "16 kbytes on an i386 machine. Larger values may make for " >+ "better performance, but occupies more module memory."); > module_param_named(sample_rate, sample_rate, int, S_IRUGO|S_IWUSR); >+MODULE_PARM_DESC(sample_rate, >+ "Determine how many blocks in the dump partition are verified " >+ "before actual memory dumping begins. Default value is 8, " >+ "which means one of every \"1<<8\" (256) blocks are verified. " >+ "Specifying zero means all blocks in the partition are " >+ "verified, and a minus value disables verification."); > module_param_named(dump_level, dump_level, int, S_IRUGO|S_IWUSR); >+MODULE_PARM_DESC(dump_level, >+ "A memory collection level that specifies which memory " >+ "pages will be dumped. Default value of 0 dumps all pages " >+ "of physical RAM into the vmcore file. To avoid excessively " >+ "large vmcore files, page cache pages, zero-filled pages, " >+ "free pages, and user application pages may be eliminated " >+ "from the file. Please refer README in diskdumputils package " >+ "for more detail of each value"); > module_param_named(compress, compress, int, S_IRUGO); >+MODULE_PARM_DESC(compress, >+ "Specify whether compression for dump data is enabled or not. " >+ "The default value is 0, which means that memory pages will be " >+ "dumped without compression. If the value is 1, memory pages " >+ "will be compressed using the deflation algorithm, GZIP."); > > static unsigned long timestamp_1sec; > static uint32_t module_crc;
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bug 205720
: 149471