Re: [Bugme-new] [Bug 7602] New: Failure on compilation: include/asm/bitops.h:122: error: inconsistent operand constraints in an `asm' in nfs_access_add_cache()
- From: Andrew Morton <akpm@xxxxxxxx>
- Date: Thu, 30 Nov 2006 13:37:48 -0800
On Thu, 30 Nov 2006 13:18:53 -0800
bugme-daemon@xxxxxxxxxxxxxxxxxxx wrote:
http://bugzilla.kernel.org/show_bug.cgi?id=7602
Summary: Failure on compilation: include/asm/bitops.h:122: error:
inconsistent operand constraints in an `asm' in
nfs_access_add_cache()
Kernel Version: 2.6.19
Status: NEW
Severity: high
Owner: trond.myklebust@xxxxxxxxxx
Submitter: mjw99@xxxxxxxx
Most recent kernel where this bug did *NOT* occur:
2.6.18.3
Distribution:
RHEL4-U2 AS
Hardware Environment:
8 CPU Dual Core Opteron box with 32Gb of ram
http://www.iwill.net/product_2.asp?p_id=90&sp=Y
Software Environment:
RHEL4-U2
gcc version 3.4.4 20050721 (Red Hat 3.4.4-2)
Problem Description:
Compilation fails with the error message:
....
CC fs/nfs/client.o
CC fs/nfs/dir.o
fs/nfs/dir.c: In function `nfs_access_add_cache':
include/asm/bitops.h:122: error: inconsistent operand constraints in an `asm'
Seems that this:
static __inline__ int __test_and_set_bit(int nr, volatile void * addr)
{
int oldbit;
__asm__(
"btsl %2,%1\n\tsbbl %0,%0"
:"=r" (oldbit),"+m" (ADDR)
:"dIr" (nr));
return oldbit;
}
explodes with gcc-3.4.4.
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