On Fri, 2008-09-26 at 00:12 +0900, FUJITA Tomonori wrote: > On Thu, 25 Sep 2008 17:05:13 +0200 > Tomasz Chmielewski <mangoo@xxxxxxxx> wrote: > > > FUJITA Tomonori schrieb: > > > On Thu, 25 Sep 2008 16:17:02 +0200 > > > Tomasz Chmielewski <mangoo@xxxxxxxx> wrote: > > > > > >> tgtd crashes if we want to use more than ~43 luns in a target. > > >> > > >> To reproduce, use this bash script: > > >> > > >> #!/bin/bash > > >> > > >> i=1 > > >> > > >> tgtadm --lld iscsi --op new --mode target --tid 7 -T iqn.2007-02.com.example:test.break > > >> > > >> while [ $i -ne 1024 ] ; do > > >> > > >> tgtadm --lld iscsi --op new --mode logicalunit --tid 7 --lun $i -b /dev/sda > > >> [ $? -ne 0 ] && exit > > >> echo lun $i > > >> i=$((i+1)) > > >> > > >> done > > > > > > You might fail to create pthreads with both problems. > > > > > > This patch enables you to create more luns (but eventually, tgtd > > > crashes) ? > > > > Yes, with this patch it crashes after ~110 luns or ~60 targets. > > I see, thanks. > > > The first problem is that tgtd can't handle the failure to create > pthreads. I'll try to fix this soon. > > The second problem is seems that glibc has the limit of the maximum > number of pthreads per process. reduce the stack size by using attr, you can create much more threads. > > I guess that we create too many pthreads per lun. Probably, it would > be better to have some pthreads per target (regardless of the number > of luns). But it takes some time to fix the second problem. > -- > 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 -- 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
