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** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: focal
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https://bugs.launchpad.net/bugs/1886364
Title:
initiator causes kernel crash when login lun/disk on Focal
Status in ceph-iscsi package in Ubuntu:
New
Status in linux package in Ubuntu:
Incomplete
Bug description:
Software version
linaro@j13-r120-t32-09:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04 LTS
Release: 20.04
Codename: focal
linaro@j13-r120-t32-09:~$ uname -a
Linux j13-r120-t32-09 5.4.0-37-generic #41-Ubuntu SMP Wed Jun 3 17:57:16 UTC
2020 aarch64 aarch64 aarch64 GNU/Linux
linaro@j13-r120-t32-09:~$
stack@j13-r120-t32-09:~/devstack-plugin-ceph$ apt search ceph-iscsi
Sorting... Done
Full Text Search... Done
ceph-iscsi/focal,now 3.4-0ubuntu2 all [installed]
common logic and CLI tools for creating and managing LIO gateways for Ceph
stack@j13-r120-t32-09:~/devstack-plugin-ceph$ apt search tcmu-runner
Sorting... Done
Full Text Search... Done
libtcmu2/focal,now 1.5.2-5build1 arm64 [installed,automatic]
Library that handles the userspace side of the LIO TCM-User backstore
tcmu-runner/focal,now 1.5.2-5build1 arm64 [installed]
Daemon that handles the userspace side of the LIO TCM-User backstore
Hardware
cavium thx1
root@j13-r120-t32-09:/home/linaro# lshw -c cpu
*-cpu
description: CPU
product: ARM (CN88xx)
vendor: CN8890-2000BG2601-CP-Y-G
physical id: 2e
bus info: cpu@0
version: 2.1
serial: CPU Serial#
slot: Socket
size: 2GHz
capacity: 2GHz
clock: 156MHz
capabilities: lm
configuration: cores=48 enabledcores=48
root@j13-r120-t32-09:/home/linaro# lshw -c system
j13-r120-t32-09
description: System
product: R120-T32-00 (01234567890123456789AB)
vendor: GIGABYTE
version: 0100
serial: GHG2N2912A0009
width: 64 bits
capabilities: smbios-3.0.0 dmi-3.0.0 smp cp15_barrier setend swp
tagged_addr_disabled
configuration: chassis=server family=Server sku=01234567890123456789AB
uuid=00000000-0000-4000-8000-1C1B0D94A9DE
Reproduce
Setup ceph iscsi gate way and initiator in the same ubuntu focal all-in-one.
iSCSI targets setup
1, $ apt install ceph-iscsi targetcli-fb
2, ceph iscsi config
stack@j13-r120-t32-09:~/devstack-plugin-ceph$ sudo cat
/etc/ceph/iscsi-gateway.cfg
[config]
api_port = 5002
api_password = openstack
api_user = openstack
api_secure = false
prometheus_host = 10.101.96.110
gateway_keyring = ceph.client.admin.keyring
cluster_name = ceph
trusted_ip_list = 10.101.96.110,localhost
minimum_gateways = 1
pool = volumes
3, target iqn, client iqn, disk/lun creation
https://docs.ceph.com/docs/master//rbd/iscsi-target-cli/
iSCSI initiator setup
1, $ apt install open-iscsi
https://www.server-world.info/en/note?os=Ubuntu_18.04&p=iscsi&f=3
2,
$ iscsiadm -m discovery -t sendtargets -p 10.101.96.110
$ sudo iscsiadm -m node -T iqn.1993-08.org.opendev:01:a9aa4032d2c1 -l
Login lun cause crash ceph iscsi gw node
[ 122.112611] xfs filesystem being mounted at /var/lib/ceph supports
timestamps until 2038 (0x7fffffff)
linaro@j13-r120-t32-09:~$ [ 1512.796815] Unable to handle kernel read from
unreadable memory at virtual address 0000000001dc0040
[ 1512.805865] Mem abort info:
[ 1512.808647] ESR = 0x96000004
[ 1512.811702] EC = 0x25: DABT (current EL), IL = 32 bits
[ 1512.817023] SET = 0, FnV = 0
[ 1512.820089] EA = 0, S1PTW = 0
[ 1512.823238] Data abort info:
[ 1512.826128] ISV = 0, ISS = 0x00000004
[ 1512.829972] CM = 0, WnR = 0
[ 1512.832933] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000cd14a0000
[ 1512.839410] [0000000001dc0040] pgd=0000000000000000
[ 1512.844300] Internal error: Oops: 96000004 [#1] SMP
[ 1512.849169] Modules linked in: target_core_pscsi target_core_file
target_core_iblock iscsi_target_mod xfs xt_REDIRECT xt_comment xt_nat xt_mark
xt_connmark ip6table_raw iptable_raw xt_CHECKSUM xt_MASQUERADE xt_conntrack
ipt_REJECT nf_reject_ipv4 xt_tcpudp ip6table_mangle ip6table_nat iptable_mangle
iptable_nat nf_tables ip6table_filter ip6_tables iptable_filter bpfilter bridge
stp llc target_core_user uio target_core_mod nf_conntrack_netlink binfmt_misc
nls_iso8859_1 nfnetlink_cttimeout nfnetlink ipmi_ssif ipmi_devintf
cavium_rng_vf joydev input_leds ipmi_msghandler cavium_rng thunderx_edac
openvswitch nsh nf_conncount nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
libcrc32c sch_fq_codel ip_tables x_tables autofs4 crct10dif_ce ghash_ce nicvf
ast cavium_ptp i2c_algo_bit drm_vram_helper sha2_ce ttm drm_kms_helper
syscopyarea sha256_arm64 sysfillrect sysimgblt fb_sys_fops sha1_ce drm e1000e
nicpf ahci thunder_bgx thunder_xcv i2c_thunderx mdio_thunder thunderx_mmc
mdio_cavium hid_generic
[ 1512.849252] usbhid hid aes_neon_bs aes_neon_blk aes_ce_blk crypto_simd
cryptd aes_ce_cipher
[ 1512.945007] CPU: 0 PID: 11002 Comm: iscsi_trx Not tainted 5.4.0-37-generic
#41-Ubuntu
[ 1512.952823] Hardware name: GIGABYTE R120-T32-00/MT30-GS1-00, BIOS T49
02/02/2018
[ 1512.960206] pstate: 80400005 (Nzcv daif +PAN -UAO)
[ 1512.964990] pc : flush_dcache_page+0x18/0x60
[ 1512.969258] lr : is_ring_space_avail+0x74/0x348 [target_core_user]
[ 1512.975424] sp : ffff80003b98bab0
[ 1512.978726] x29: ffff80003b98bab0 x28: ffff000c991241f0
[ 1512.984026] x27: 0000000000001000 x26: 0000000000001000
[ 1512.989326] x25: ffff80007f001000 x24: fffffdffffe00000
[ 1512.99462000000000000000
[ 1513.015825] x15: 0000000000000000 x14: 0000000000000004
[ 1513.021125] x13: 0000000000000001 x12: 0000000000000002
[ 1513.026425] x11: 0000000000000000 x10: ffff80001163af47
[ 1513.031725] x9 : 0000000000000000 x8 : ffff000cb02b0700
[ 1513.037025] x7 : 0000000000000000 x6 : 0000000000001390
[ 1513.042324] x5 : 0000000000000080 x4 : 0000000000800000
[ 1513.047629] x3 : 0000000000001000 x2 : 0000000000000078
[ 1513.052931] x1 : ffff000cd1dfc168 x0 : ffff800008fea95c
[ 1513.058232] Call trace:
[ 1513.060672] flush_dcache_page+0x18/0x60
[ 1513.064589] is_ring_space_avail+0x74/0x348 [target_core_user]
[ 1513.070411] queue_cmd_ring+0x1fc/0x6b0 [target_core_user]
[ 1513.075886] tcmu_queue_cmd+0xd8/0x31c [target_core_user]
[ 1513.081352] __target_execute_cmd+0x30/0x118 [target_core_mod]
[ 1513.087205] target_execute_cmd+0x19c/0x3e8 [target_core_mod]
[ 1513.092970] transport_generic_new_cmd+0x200/0x3a0 [target_core_mod]
[ 1513.099344] transport_handle_cdb_direct+0x50/0xb0 [target_core_mod]
[ 1513.105753] iscsit_execute_cmd+0x2a8/0x328 [iscsi_target_mod]
[ 1513.111599] iscsit_sequence_cmd+0xd8/0x1c8 [iscsi_target_mod]
[ 1513.117446] iscsit_process_scsi_cmd+0xac/0xf8 [iscsi_target_mod]
[ 1513.123553] iscsit_get_rx_pdu+0x42c/0xe28 [iscsi_target_mod]
[ 1513.129313] iscsi_target_rx_thread+0xbc/0x148 [iscsi_target_mod]
[ 1513.135395] kthread+0xec/0x118
[ 1513.138526] ret_from_fork+0x10/0x18
[ 1513.142094] Code: f9000bf3 aa0003f3 aa1e03e0 d503201f (f9400260)
[ 1513.148175] ---[ end trace 3fb1a3e4d49f508d ]---
[ 1523.009525] Did not receive response to NOPIN on CID: 0, failing
connection for I_T Nexus
iqn.1994-05.com.redhat:rh7-client,i,0x00023d000002,iqn.1993-08.org.opendev:01:a9aa4032d2c1,t,0x01
[ 1523.026234] ------------[ cut here ]------------
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