when I tested nfstest_pnfs with“pnfs”option in /etc/exports (no pnfs
env), nfs server crashes：
test step:
1. # cat /etc/exports
/nfsroot*(rw,insecure,no_subtree_check,no_root_squash,pnfs,fsid=1)
2, # ./nfstest_pnfs --nfsversion=4.1 -e /nfsroot --server
environment:
rhel8.0beta(4.18.0-32.el8.x86_64)
error message:
[ 118.257524] WARNING: CPU: 7 PID: 1152 at fs/nfsd/blocklayout.c:232
nfsd4_scsi_proc_getdeviceinfo+0x1ca/0x3b0 [nfsd]
[ 118.257528] Modules linked in: snd_hda_codec_generic snd_hda_intel
snd_hda_codec snd_hda_core crct10dif_pclmul crc32_pclmul snd_hwdep
ghash_clmulni_intel snd_pcm snd_timer sg snd soundcore i2c_piix4
virtio_balloon pcspkr joydev nfsd auth_rpcgss nfs_acl lockd grace sunrpc
ip_tables xfs libcrc32c sr_mod sd_mod cdrom ata_generic qxl
drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm
ata_piix drm libata crc32c_intel virtio_net serio_raw virtio_console
net_failover failover dm_mirror dm_region_hash dm_log dm_mod
[ 118.257596] CPU: 7 PID: 1152 Comm: nfsd Kdump: loaded Not tainted
4.18.0-32.el8.x86_64 #1
[ 118.257596] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
[ 118.257612] RIP: 0010:nfsd4_scsi_proc_getdeviceinfo+0x1ca/0x3b0 [nfsd]
[ 118.257614] Code: 39 00 00 4c 89 ff 48 89 34 24 e8 61 6b 9a c1 48 89
ef e8 49 aa 85 c1 48 8b 34 24 c7 04 24 00 00 00 00 48 89 f3 e9 e6 fe ff
ff <0f> 0b b8 ea ff ff ff 48 83 c4 08 89 c7 5b 5d 41 5c 41 5d 41 5e 41
[ 118.257615] RSP: 0018:ffffb348027cbd70 EFLAGS: 00010246
[ 118.257616] RAX: 0000000004120800 RBX: 00000000000000fc RCX:
0000000000000000
[ 118.257618] RDX: 00000000b25822a2 RSI: 0000000000000000 RDI:
ffff9c0e87c03080
[ 118.257621] RBP: ffff9c1031708240 R08: ffff9c10359a7140 R09:
ffff9c0e87c03080
[ 118.257622] R10: ffffe4730ad650c0 R11: ffff9c10331e5a00 R12:
ffff9c102fb32000
[ 118.257623] R13: ffff9c1032b96600 R14: ffff9c102d72aff8 R15:
0000000000000000
[ 118.257638] FS: 0000000000000000(0000) GS:ffff9c1035980000(0000)
knlGS:0000000000000000
[ 118.257639] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 118.257640] CR2: 00007f60683e61c4 CR3: 00000002b17ee000 CR4:
00000000001406e0
[ 118.257647] Call Trace:
[ 118.257684] nfsd4_getdeviceinfo+0x9b/0x130 [nfsd]
[ 118.257693] nfsd4_proc_compound+0x33e/0x640 [nfsd]
[ 118.257701] ? nfsd4_decode_compound.constprop.50+0x3b2/0x460 [nfsd]
[ 118.257707] nfsd_dispatch+0x9e/0x210 [nfsd]
[ 118.257724] svc_process_common+0x46e/0x6c0 [sunrpc]
[ 118.257731] ? nfsd_destroy+0x50/0x50 [nfsd]
[ 118.257754] svc_process+0xb7/0xf0 [sunrpc]
[ 118.257760] nfsd+0xe3/0x140 [nfsd]
[ 118.257784] kthread+0x112/0x130
[ 118.257790] ? kthread_bind+0x30/0x30
[ 118.257804] ret_from_fork+0x35/0x40
[ 118.257810] ---[ end trace bfda1308b0b23ec9 ]---
