Markus, LVM 0.9 had the strncmp() call in line 148, 1.0.7 has it in line 155 which makes me believe that the output below belongs to a 0.9 run. Please retest with 1.0.7 which avoids hitting the NULL pointer bug. Regards, Heinz -- The LVM Guy -- On Thu, Aug 21, 2003 at 10:07:57PM +0200, Markus Baertschi wrote: > > I've got a strange problem with LVM. My environment is four > IBM x440 servers (2 CPU, 2G memory) interconnected with two > fcs adapters and two switches to a FastT700 SAN storage array. > > Due to circumstances we are trying to understand the FCS drivers > did show our disk devices twice (once per adapter). This is a problem > on our part, but vgscan should terminate with an error message > instead of a segfault. > > We've started out with 0.98beta2 (what came with out SuSE 7). The > problem is the same with the latest tarball (1.0.7) from sistina. > > Markus > > Some output from vgscan: > <1> vg_check_exist_all_vg -- before vg_check_exist ( sapqvg) > <22> vg_check_exist -- CALLED with VG: sapqvg > <333> vg_check_name -- CALLED with VG: sapqvg > <4444> lvm_check_chars -- CALLED with name: "sapqvg" > <4444> lvm_check_chars -- LEAVING with ret: 0 > <333> vg_check_name -- LEAVING with ret: 0 > <22> vg_check_exist -- before pv_read_all_pv_of_vg > <333> pv_read_all_pv_of_vg -- CALLED with vg_name: "sapqvg" > <4444> vg_check_name -- CALLED with VG: sapqvg > <55555> lvm_check_chars -- CALLED with name: "sapqvg" > <55555> lvm_check_chars -- LEAVING with ret: 0 > <4444> vg_check_name -- LEAVING with ret: 0 > <4444> pv_read_all_pv -- CALLED > <4444> pv_read_all_pv -- avoiding multiple entries in case of MD; np: 0 > <4444> pv_read_all_pv -- LEAVING with ret: 0 > <4444> pv_check_consistency -- CALLED > <55555> pv_check_name -- CALLED with "/dev/sdb1" > <666666> lvm_check_chars -- CALLED with name: "/dev/sdb1" > <666666> lvm_check_chars -- LEAVING with ret: 0 > <666666> lvm_check_dev -- CALLED > <7777777> lvm_check_partitioned_dev -- CALLED > <88888888> lvm_get_device_type called > <88888888> lvm_get_device_type leaving with 1 > <7777777> lvm_check_partitioned_dev -- LEAVING with ret: TRUE > <666666> lvm_check_dev -- LEAVING with ret: 1 > <55555> pv_check_name -- LEAVING with ret: 0 > <55555> vg_check_name -- CALLED with VG: sapqvg > <666666> lvm_check_chars -- CALLED with name: "sapqvg" > <666666> lvm_check_chars -- LEAVING with ret: 0 > <55555> vg_check_name -- LEAVING with ret: 0 > <55555> lvm_check_dev -- CALLED > <666666> lvm_check_partitioned_dev -- CALLED > <7777777> lvm_get_device_type called > <7777777> lvm_get_device_type leaving with 1 > <666666> lvm_check_partitioned_dev -- LEAVING with ret: TRUE > <55555> lvm_check_dev -- LEAVING with ret: 1 > <55555> pv_check_new -- CALLED > <55555> pv_check_new -- LEAVING with ret: 0 > <4444> pv_check_consistency -- LEAVING with ret: 0 > <4444> pv_read_uuidlist -- CALLED with /dev/sdb1 > <4444> lvm_check_uuid -- LEAVING with ret: 0 > <333> lvm_check_uuid -- LEAVING with ret: 0 > <22> lvm_check_uuid -- LEAVING with ret: -1 > <1> lvm_check_uuid -- LEAVING with ret: -1 > <> lvm_check_uuid -- LEAVING with ret: -1 > ... (repeats 250 times) ... > <> lvm_check_uuid -- LEAVING with ret: -1 > <> pv_read_uuidlist -- LEAVING with ret: 2 > Segmentation fault > > lblsapq00:~ # gdb ./LVM/1.0.7/tools/vgscan > GNU gdb 5.0 > Copyright 2000 Free Software Foundation, Inc. > GDB is free software, covered by the GNU General Public License, and you are > welcome to change it and/or distribute copies of it under certain conditions. > Type "show copying" to see the conditions. > There is absolutely no warranty for GDB. Type "show warranty" for details. > This GDB was configured as "i386-suse-linux"... > (gdb) run > Starting program: /root/./LVM/1.0.7/tools/vgscan > vgscan -- reading all physical volumes (this may take a while...) > > Program received signal SIGSEGV, Segmentation fault. > 0x400c97a3 in strncmp () from /lib/libc.so.6 > (gdb) bt > #0 0x400c97a3 in strncmp () from /lib/libc.so.6 > #1 0x400337f0 in pv_read_all_pv_of_vg (vg_name=0x804dc34 "sapqvg", pv= > 0xbfffe948, reread=1) > at pv_read_all_pv_of_vg.c:148 > #2 0x40038ac1 in vg_check_exist (vg_name=0x804dc34 "sapqvg") at > vg_check_exist.c:59 > #3 0x40038da2 in vg_check_exist_all_vg () at vg_check_exist.c:128 > #4 0x8049351 in main (argc=1, argv=0xbfffeb64) at vgscan.c:188 > #5 0x4006cc5f in __libc_start_main () from /lib/libc.so.6 > (gdb) quit > > > > > > > -- > Markus Baertschi Phone: ++41 (21) 807 1677 > Bas du Rossé 14b Fax : ++41 (21) 807 1678 > CH-1163, Etoy Email: markus@markus.org > Switzerland Homepage: www.markus.org > > > > _______________________________________________ > linux-lvm mailing list > linux-lvm@sistina.com > http://lists.sistina.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ *** Software bugs are stupid. Nevertheless it needs not so stupid people to solve them *** =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Heinz Mauelshagen Sistina Software Inc. Senior Consultant/Developer Am Sonnenhang 11 56242 Marienrachdorf Germany Mauelshagen@Sistina.com +49 2626 141200 FAX 924446 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
