Details
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Bug
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Resolution: Fixed
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Minor
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Lustre 2.7.0
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3
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17252
Description
Andrew Uselton has pointer out that the i686 built modules are unusable on his 32-bit hardware due to undefined references to __umoddi3. Divides that that emit these calls should be rewritten to use do_div() or one of its friends. I grabbed the latest i686 RPMs and checked for these calls as follows:
wget 'https://build.hpdd.intel.com/job/lustre`master/arch=i686,build_type=server,distro=el6,ib_stack=inkernel/lastSuccessfulBuild/artifact/artifacts/RPMS/i686/lustre-modules-2.6.93-2.6.32_431.29.2.el6_lustre.g52480e5.i686_g52480e5.i686.rpm'
wget 'https://build.hpdd.intel.com/job/lustre-master/arch=i686,build_type=server,distro=el6,ib_stack=inkernel/lastSuccessfulBuild/artifact/artifacts/RPMS/i686/lustre-debuginfo-2.6.93-2.6.32_431.29.2.el6_lustre.g52480e5.i686_g52480e5.i686.rpm'
rpm2cpio lustre-modules-2.6.93-2.6.32_431.29.2.el6_lustre.g52480e5.i686_g52480e5.i686.rpm | cpio -itv
rpm2cpio lustre-modules-2.6.93-2.6.32_431.29.2.el6_lustre.g52480e5.i686_g52480e5.i686.rpm | cpio -idv
find lib -name '*.ko' -exec eu-unstrip {} usr/lib/debug/{}.debug \;
find /tmp/i686/usr -name '*.ko.debug' -exec objdump -dlr {} \; | grep -B30
Here is the slightly edited output:
kiblnd_get_completion_vector():
/usr/src/debug/lustre-2.6.93/lnet/klnds/o2iblnd/o2iblnd.c:696
11bac: 89 c2 mov %eax,%edx
11bae: c1 fa 1f sar $0x1f,%edx
11bb1: 89 04 24 mov %eax,(%esp)
11bb4: 89 f0 mov %esi,%eax
11bb6: 89 54 24 04 mov %edx,0x4(%esp)
11bba: 89 fa mov %edi,%edx
11bbc: e8 fc ff ff ff call 11bbd <kiblnd_create_conn+0x87d>
11bbd: R_386_PC32 __umoddi3
delay_rule_match():
/usr/src/debug/lustre-2.6.93/lnet/lnet/net_fault.c:507
3215d: 89 04 24 mov %eax,(%esp)
32160: 89 d8 mov %ebx,%eax
32162: c7 44 24 04 00 00 00 movl $0x0,0x4(%esp)
32169: 00
3216a: e8 fc ff ff ff call 3216b <lnet_delay_rule_match_locked+0x2bb>
3216b: R_386_PC32 __umoddi3
drop_rule_match():
/usr/src/debug/lustre-2.6.93/lnet/lnet/net_fault.c:337
/usr/src/debug/lustre-2.6.93/lnet/lnet/net_fault.c:339
33bd0: 89 0c 24 mov %ecx,(%esp)
33bd3: c7 44 24 04 00 00 00 movl $0x0,0x4(%esp)
33bda: 00
33bdb: e8 fc ff ff ff call 33bdc <lnet_drop_rule_match+0x25c>
33bdc: R_386_PC32 __umoddi3
lmv_hash_fnv1a():
/usr/src/debug/lustre-2.6.93/lustre/include/lustre_lmv.h:167
5e62e: 8b 75 f0 mov -0x10(%ebp),%esi
5e631: 8b 45 dc mov -0x24(%ebp),%eax
5e634: 8b 55 e0 mov -0x20(%ebp),%edx
5e637: c7 44 24 04 00 00 00 movl $0x0,0x4(%esp)
5e63e: 00
5e63f: 8b 5d e8 mov -0x18(%ebp),%ebx
5e642: 89 34 24 mov %esi,(%esp)
5e645: 89 4d e4 mov %ecx,-0x1c(%ebp)
5e648: e8 fc ff ff ff call 5e649 <lfsck_is_valid_slave_name_entry+0x199>
5e649: R_386_PC32 __umoddi3
