Hi Fujita-san, I am not sure which branch to apply, so I tried both HEAD and the patch you give me last time (Tue, 19 Jul 2011 14:57:45 +0800). Please kindly view from these URLs. == HEAD == log: http://dl.dropbox.com/u/8354750/tgtd/20110725/head/messages some gdb prints: http://dl.dropbox.com/u/8354750/tgtd/20110725/head/gdb.txt coredump: http://dl.dropbox.com/u/8354750/tgtd/20110725/head/core-tgtd-11-0-0-12296-1311574557.gz patch: http://dl.dropbox.com/u/8354750/tgtd/20110725/head/patch.master result: terminate with segfault == patched == log: http://dl.dropbox.com/u/8354750/tgtd/20110725/patched/messages coredump: http://dl.dropbox.com/u/8354750/tgtd/20110725/patched/core-tgtd-11-0-0-26809-1311578501.gz patch: http://dl.dropbox.com/u/8354750/tgtd/20110725/patched/patch.base_on_fujita0720 result: terminate with general protection == The workload is 64KB write at the beginning. (Format 10 x 9.5G files from 14 hosts). Often the I/O fails during the format procedure of vdbench. We are doing I/Os in VMs, from Hypervisor's log we saw conn error. ping error. Do you think adjusting NOOP_OUT/other timeout parameters at initiator side help? Right now the most stable workaround we use is to adjust backing-store thread per lun to 1. (Although we find a symptom that tgtd can't exit a loop once) Thanks for the support. 2011/7/25 FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx>: > On Wed, 20 Jul 2011 19:08:59 +0800 > Kiefer Chang <zapchang@xxxxxxxxx> wrote: > >> Here is the result, unfortunately neither the core dump or directly >> attaching gdb to tgtd can't show right code trace. >> system log: >> http://dl.dropbox.com/u/8354750/tgtd/20110720/messages.gz > > Thanks, I'm rewriting tmf code. Please wait for a while. > > Can you try the following patch? I want to see if tgtd can survive > with tmf disabled. > > Thanks! > > = > From: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx> > Subject: [PATCH] iscsi: disable tmf > > Signed-off-by: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx> > --- > usr/iscsi/iscsid.c | 5 ++++- > 1 files changed, 4 insertions(+), 1 deletions(-) > > diff --git a/usr/iscsi/iscsid.c b/usr/iscsi/iscsid.c > index 3fbd9f6..d575e18 100644 > --- a/usr/iscsi/iscsid.c > +++ b/usr/iscsi/iscsid.c > @@ -1405,6 +1405,9 @@ static int iscsi_tm_execute(struct iscsi_task *task) > struct iscsi_tm *req = (struct iscsi_tm *) &task->req; > int fn = 0, err = 0; > > + err = ISCSI_TMF_RSP_NOT_SUPPORTED; > + goto out; > + > switch (req->flags & ISCSI_FLAG_TM_FUNC_MASK) { > case ISCSI_TM_FUNC_ABORT_TASK: > fn = ABORT_TASK; > @@ -1432,7 +1435,7 @@ static int iscsi_tm_execute(struct iscsi_task *task) > eprintf("unknown task management function %d\n", > req->flags & ISCSI_FLAG_TM_FUNC_MASK); > } > - > +out: > if (err) > task->result = err; > else { > -- > 1.7.2.5 > > > > -- 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
