On Fri, Dec 3, 2021 at 3:01 AM Bernard Metzler <BMT@xxxxxxxxxxxxxx> wrote: > > -----"Bart Van Assche" <bvanassche@xxxxxxx> wrote: ----- > > >To: "Yi Zhang" <yi.zhang@xxxxxxxxxx>, "RDMA mailing list" > ><linux-rdma@xxxxxxxxxxxxxxx> > >From: "Bart Van Assche" <bvanassche@xxxxxxx> > >Date: 12/02/2021 07:43PM > >Subject: [EXTERNAL] Re: [bug report] blktests srp/011 hang at > >"ib_srpt srpt_disconnect_ch_sync:still waiting ..." > > > >On 12/1/21 12:55 AM, Yi Zhang wrote: > >> [root@gigabyte-r120-11 blktests]# use_siw=1 ./check srp/011 > >-------------> hang > > > >Hi Yi, > > > >Does this only occur with the siw driver or also with the rdma_rxe > >driver? > > > >If this hang occurs with both drivers, how about bisecting this > >issue? I > >have not yet run into this issue with the rdma_rxe driver and Linus' > >master > >branch. Hi Bart This only reproduced with siw. Maybe it's related to the num of network interfaces, I just found this issue only can be reproduced when the system has 3(or greater) up network interfaces, and cannot be reproduced with two up network interfaces. And from ps, seems was hang at removing the srpt target: [root@gigabyte-r120-11 ~]# ps aux | grep rm root 232 0.0 0.0 0 0 ? I< 00:20 0:00 [acpi_thermal_pm] root 10198 0.2 0.0 5240 776 pts/0 D+ 00:37 0:00 rmdir /sys/kernel/config/target/srpt/0x1c1b0d9db02f00000000000000000000/0x1c1b0d9db02f00000000000000000000/acls/0x1c1b0d9db02f00000000000000000000 /sys/kernel/config/target/srpt/0x1c1b0d9db02f00000000000000000000/0x1c1b0d9db02f00000000000000000000/acls/0x1c1b0d9db03000000000000000000000 /sys/kernel/config/target/srpt/0x1c1b0d9db02f00000000000000000000/0x1c1b0d9db02f00000000000000000000/acls/0x1c1b0d9db03100000000000000000000 /sys/kernel/config/target/srpt/0x1c1b0d9db02f00000000000000000000/0x1c1b0d9db02f00000000000000000000/acls/0x1c1b0d9db03200000000000000000000 /sys/kernel/config/target/srpt/0x1c1b0d9db02f00000000000000000000/0x1c1b0d9db02f00000000000000000000/acls/0x1c1b0d9db03300000000000000000000 /sys/kernel/config/target/srpt/0x1c1b0d9db02f00000000000000000000/0x1c1b0d9db02f00000000000000000000/acls/0xa0369f79eb2000000000000000000000 /sys/kernel/config/target/srpt/0x1c1b0d9db02f00000000000000000000/0x1c1b0d9db02f00000000000000000000/acls/0xa0369f79eb2200000000000000000000 /sys/kernel/config/target/srpt/0x1c1b0d9db02f00000000000000000000/0x1c1b0d9db02f00000000000000000000/acls/10.19.240.47 /sys/kernel/config/target/srpt/0x1c1b0d9db02f00000000000000000000/0x1c1b0d9db02f00000000000000000000/acls/10.19.243.129 /sys/kernel/config/target/srpt/0x1c1b0d9db02f00000000000000000000/0x1c1b0d9db02f00000000000000000000/acls/10.19.243.242 /sys/kernel/config/target/srpt/0x1c1b0d9db02f00000000000000000000/0x1c1b0d9db02f00000000000000000000/acls/2620:0052:0000:13f0:1e1b:0dff:fe9d:b02f /sys/kernel/config/target/srpt/0x1c1b0d9db02f00000000000000000000/0x1c1b0d9db02f00000000000000000000/acls/2620:0052:0000:13f0:1e1b:0dff:fe9d:b02f:fe80:1e1b:0dff:fe9d:b02f /sys/kernel/config/target/srpt/0x1c1b0d9db02f00000000000000000000/0x1c1b0d9db02f00000000000000000000/acls/2620:0052:0000:13f0:1e1b:0dff:fe9d:b031 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/sys/kernel/config/target/srpt/0xa0369f79eb2000000000000000000000/0xa0369f79eb2000000000000000000000/acls/2620:0052:0000:13f0:1e1b:0dff:fe9d:b02f:fe80:1e1b:0dff:fe9d:b02f /sys/kernel/config/target/srpt/0xa0369f79eb2000000000000000000000/0xa0369f79eb2000000000000000000000/acls/2620:0052:0000:13f0:1e1b:0dff:fe9d:b031 /sys/kernel/config/target/srpt/0xa0369f79eb2000000000000000000000/0xa0369f79eb2000000000000000000000/acls/2620:0052:0000:13f0:1e1b:0dff:fe9d:b031:fe80:1e1b:0dff:fe9d:b031 /sys/kernel/config/target/srpt/0xa0369f79eb2000000000000000000000/0xa0369f79eb2000000000000000000000/acls/2620:0052:0000:13f0:1e1b:0dff:fe9d:b032 /sys/kernel/config/target/srpt/0xa0369f79eb2000000000000000000000/0xa0369f79eb2000000000000000000000/acls/2620:0052:0000:13f0:1e1b:0dff:fe9d:b032:fe80:1e1b:0dff:fe9d:b032 /sys/kernel/config/target/srpt/0xa0369f79eb2200000000000000000000/0xa0369f79eb2200000000000000000000/acls/0x1c1b0d9db02f00000000000000000000 /sys/kernel/config/target/srpt/0xa0369f79eb2200000000000000000000/0xa0369f79eb2200000000000000000000/acls/0x1c1b0d9db03000000000000000000000 /sys/kernel/config/target/srpt/0xa0369f79eb2200000000000000000000/0xa0369f79eb2200000000000000000000/acls/0x1c1b0d9db03100000000000000000000 /sys/kernel/config/target/srpt/0xa0369f79eb2200000000000000000000/0xa0369f79eb2200000000000000000000/acls/0x1c1b0d9db03200000000000000000000 /sys/kernel/config/target/srpt/0xa0369f79eb2200000000000000000000/0xa0369f79eb2200000000000000000000/acls/0x1c1b0d9db03300000000000000000000 /sys/kernel/config/target/srpt/0xa0369f79eb2200000000000000000000/0xa0369f79eb2200000000000000000000/acls/0xa0369f79eb2000000000000000000000 /sys/kernel/config/target/srpt/0xa0369f79eb2200000000000000000000/0xa0369f79eb2200000000000000000000/acls/0xa0369f79eb2200000000000000000000 /sys/kernel/config/target/srpt/0xa0369f79eb2200000000000000000000/0xa0369f79eb2200000000000000000000/acls/10.19.240.47 /sys/kernel/config/target/srpt/0xa0369f79eb2200000000000000000000/0xa0369f79eb2200000000000000000000/acls/10.19.243.129 /sys/kernel/config/target/srpt/0xa0369f79eb2200000000000000000000/0xa0369f79eb2200000000000000000000/acls/10.19.243.242 /sys/kernel/config/target/srpt/0xa0369f79eb2200000000000000000000/0xa0369f79eb2200000000000000000000/acls/2620:0052:0000:13f0:1e1b:0dff:fe9d:b02f /sys/kernel/config/target/srpt/0xa0369f79eb2200000000000000000000/0xa0369f79eb2200000000000000000000/acls/2620:0052:0000:13f0:1e1b:0dff:fe9d:b02f:fe80:1e1b:0dff:fe9d:b02f /sys/kernel/config/target/srpt/0xa0369f79eb2200000000000000000000/0xa0369f79eb2200000000000000000000/acls/2620:0052:0000:13f0:1e1b:0dff:fe9d:b031 /sys/kernel/config/target/srpt/0xa0369f79eb2200000000000000000000/0xa0369f79eb2200000000000000000000/acls/2620:0052:0000:13f0:1e1b:0dff:fe9d:b031:fe80:1e1b:0dff:fe9d:b031 /sys/kernel/config/target/srpt/0xa0369f79eb2200000000000000000000/0xa0369f79eb2200000000000000000000/acls/2620:0052:0000:13f0:1e1b:0dff:fe9d:b032 /sys/kernel/config/target/srpt/0xa0369f79eb2200000000000000000000/0xa0369f79eb2200000000000000000000/acls/2620:0052:0000:13f0:1e1b:0dff:fe9d:b032:fe80:1e1b:0dff:fe9d:b032 # cat /proc/10198/stack [<0>] __switch_to+0x150/0x1b0 [<0>] srpt_close_session+0x80/0xe4 [ib_srpt] [<0>] target_shutdown_sessions+0x128/0x150 [target_core_mod] [<0>] core_tpg_del_initiator_node_acl+0x7c/0x130 [target_core_mod] [<0>] target_fabric_nacl_base_release+0x30/0x40 [target_core_mod] [<0>] config_item_cleanup+0x60/0x160 [<0>] config_item_put+0x6c/0x120 [<0>] configfs_rmdir+0x24c/0x3f0 [<0>] vfs_rmdir+0x8c/0x210 [<0>] do_rmdir+0x174/0x1a0 [<0>] __arm64_sys_unlinkat+0x74/0x90 [<0>] invoke_syscall+0x50/0x120 [<0>] el0_svc_common.constprop.0+0x4c/0x100 [<0>] do_el0_svc+0x34/0xa0 [<0>] el0_svc+0x30/0xd0 [<0>] el0t_64_sync_handler+0xa4/0x130 [<0>] el0t_64_sync+0x1a4/0x1a8 > > > > I can't get it broken for siw nor rxe. Though for rxe is see > quite some > > 'ib_srpt receiving failed for ioctx 00000000nnnnnnnn with status 5' > > Yi, what is the architecture you are running on? > Maybe you can try switching on dynamic debugging for the siw module > and send me the dmesg trace for the hang? Of course it > will not hang with all the prints ;) I reproduced it on one aarch64 server, here is the full log with dynamic siw debug, can you try with one server which has 3 network interfaces as I mentioned above. https://pastebin.com/8XMLdeT0 > > Bernard. > -- Best Regards, Yi Zhang
