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Bug 44024 - rc.sysinit: maybe add '-s buf' to 'dmesg > /var/log/dmesg'
rc.sysinit: maybe add '-s buf' to 'dmesg > /var/log/dmesg'
Product: Red Hat Linux
Classification: Retired
Component: initscripts (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Bill Nottingham
Brock Organ
Depends On:
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Reported: 2001-06-09 07:38 EDT by giulioo
Modified: 2014-03-16 22:21 EDT (History)
1 user (show)

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2001-06-09 07:39:00 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description giulioo 2001-06-09 07:38:56 EDT
Description of problem:
AFAIK dmesg defaults to a small buffer. Since you increase the LOG_BUF_LEN 
in kernel, it may be good to use
dmesg -s <big_buf> > /var/log/dmesg
in rc.sysinit (I think big_buf should be >= 65536)

How reproducible/Steps to Reproduce:
On this system I haven't any driver that can trigger the problem, so I 
just tried to fill the dmesg buffer after boot to confirm that dmesg still 
needs '-s <buf>' to get all the available info.

Additional info:
I have this problem on a rh6x system with 8 software raid1 partitions and 
applied the fix suggested above.
Comment 1 Bill Nottingham 2001-08-07 02:50:41 EDT
Will be fixed in 6.12-1.

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