On 04/20/2014 05:20 AM, FUJITA Tomonori wrote: > On Wed, 16 Apr 2014 16:40:09 -0700 > Lee Duncan <lduncan@xxxxxxxx> wrote: > >> I am debugging a problem on SUSE 11 SP3, with tgt 0.9.10. >> >> I am creating two iSCSI targets using targets.conf. Neither target >> specifies a low-level driver, and there is no default-driver specified >> either. >> >> The targets looks something like this: >> >> <target iqn....t1> >> backing-store /dev/some-device >> vendor_id someid >> product_id volume-num1 >> </target> >> >> I create two of these targets, t1, and t2, then I using open-iscsi to >> login to the first target, t1, then logout. >> >> Then I run "tgt-admin --delete "iqn...t1". As you know, this just runs >> "tgtadm --op delete --mode target --tid=<tid-of-t1>". No low-level >> driver is specified. >> >> Then I try to login to the second target, t2, using open-iscsi, and >> the login hangs. This is because tgtd has died. >> >> Further analysis shows that tgtd dies because when it tries to look up >> the iscsi target structure for t2, the t1 entry is still around. And >> when the code tries to get the name of this no-longer-existing target, >> it gets NULL and tries to compare that with the iqn name being >> added. This makes strcmp() very unhappy. > > Surely, sounds a bug. The latest code still has this bug? I will test the latest code, then submit a patch if the problem still exists there. > > >> I find that if I manually specify the lld either on the command line >> of "tgtadm", or in one of the config files, then this problem goes >> away. >> >> It looks like when I don't specify any LLD the upper-level code >> defaults to low-lever-driver zero! This seems like a bug to me. >> >> Shouldn't the "tgtadm" command enforce specifying the low-level >> driver? > > I guess that tgtadm command should use 'iscsi' by default if the > low-level driver is not specified. > -- > To unsubscribe from this list: send the line "unsubscribe stgt" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Lee Duncan SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe stgt" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
