[Bugme-new] [Bug 12446] New: Unable to insmod module. Unknwon symbol found
bugme-daemon at bugzilla.kernel.org
bugme-daemon at bugzilla.kernel.org
Wed Jan 14 05:53:58 PST 2009
http://bugzilla.kernel.org/show_bug.cgi?id=12446
Summary: Unable to insmod module. Unknwon symbol found
Product: Drivers
Version: 2.5
KernelVersion: 2.6.28
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: blocking
Priority: P1
Component: Network
AssignedTo: jgarzik at pobox.com
ReportedBy: amit at netxen.com
Latest working kernel version:2.6.28
Earliest failing kernel version:2.6.26
Distribution:
Hardware Environment:
Software Environment:
Problem Description:
When you use driver dependent on other driver. It should load cleanely, if
other is loaded. But in kernel 2.6.26 onwards its give error, unknown symbol
found.
Actually find_symbol able to find symbol but check_version unable to match crc.
Because crc is not know to other driver.
Steps to reproduce:
1) create two device drivers in two separate directories. let say hello and bye
2) Export Symbol from hello module and try to use that in bye module.
3) Compile both the driver separately.
4) insmod hello.ko
3) While insmod(ing) bye.ko, gives error "Unknown Symbol found"
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