Also, generic/013 and generic/464 starts to triger WARN since this update: [11205.653858] run fstests generic/464 at 2020-08-09 23:31:06 [11207.046292] ------------[ cut here ]------------ [11207.070326] WARNING: CPU: 8 PID: 116965 at fs/nfsd/nfs4state.c:4955 nfsd4_check_conflicting_opens+0x94/0xa0 [nfsd] [11207.120635] Modules linked in: loop dm_mod rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache nfsd auth_rpcgss nfs_acl lockd grace rfkill intel_rapl_msr intel_rapl_common sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp sunrpc kvm_intel kvm irqbypass ipmi_ssif iTCO_wdt crct10dif_pclmul mgag200 crc32_pclmul iTCO_vendor_support drm_kms_helper ghash_clmulni_intel syscopyarea sysfillrect sysimgblt fb_sys_fops rapl acpi_ipmi intel_cstate drm intel_uncore ext4 ipmi_si pcspkr hpwdt i2c_i801 ipmi_devintf lpc_ich i2c_smbus hpilo ioatdma mbcache ipmi_msghandler acpi_power_meter jbd2 acpi_tad vfat fat ip_tables xfs libcrc32c sd_mod t10_pi sg ahci libahci igb i2c_algo_bit libata crc32c_intel hpsa dca tg3 scsi_transport_sas wmi [11207.406976] CPU: 8 PID: 116965 Comm: nfsd Tainted: G S W 5.8.0+ #1 [11207.439863] Hardware name: HP ProLiant DL120 Gen9, BIOS P86 07/20/2015 [11207.468889] RIP: 0010:nfsd4_check_conflicting_opens+0x94/0xa0 [nfsd] [11207.497390] Code: 48 39 d6 75 ed 4c 89 e7 c6 07 00 0f 1f 40 00 31 c0 5b 5d 41 5c c3 4c 89 e7 c6 07 00 0f 1f 40 00 b8 f5 ff ff ff 5b 5d 41 5c c3 <0f> 0b eb 99 b8 f5 ff ff ff eb dc 90 0f 1f 44 00 00 48 8b 56 48 48 [11207.583426] RSP: 0018:ffffc2c701b13ca0 EFLAGS: 00010286 [11207.610286] RAX: 00000000ffffffff RBX: ffff9fc12a5511e0 RCX: 0000000000000000 [11207.644050] RDX: ffff9fc16acd7700 RSI: ffff9fc11ade5c20 RDI: ffff9fc14fa7e540 [11207.676164] RBP: ffffc2c701b13d98 R08: ffff9fc14fa7e540 R09: ffff9fc1ad873838 [11207.708299] R10: 0000000000000000 R11: ffff9fc11ade5c48 R12: ffff9fc11ade5c20 [11207.741271] R13: ffff9fc11ade5c24 R14: ffff9fc11ade5c20 R15: ffff9fc16cb9a0b8 [11207.773353] FS: 0000000000000000(0000) GS:ffff9fc1afc00000(0000) knlGS:0000000000000000 [11207.809572] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [11207.835344] CR2: 000055c329644c58 CR3: 00000001a9c0e001 CR4: 00000000001706e0 [11207.867672] Call Trace: [11207.878590] nfsd4_process_open2+0x10a3/0x1420 [nfsd] [11207.901180] ? fh_verify+0x15a/0x640 [nfsd] [11207.919831] ? nfsd4_process_open1+0x178/0x460 [nfsd] [11207.942515] ? write_bytes_to_xdr_buf+0xbc/0xe0 [sunrpc] [11207.966386] nfsd4_open+0x3c6/0x710 [nfsd] [11207.984688] nfsd4_proc_compound+0x37f/0x700 [nfsd] [11208.006680] ? nfsd4_read_rsize+0x20/0x20 [nfsd] [11208.027457] nfsd_dispatch+0xa9/0x210 [nfsd] [11208.046546] svc_process_common+0x386/0x6f0 [sunrpc] [11208.068762] ? svc_sock_secure_port+0x12/0x30 [sunrpc] [11208.093021] ? svc_recv+0x3d5/0x8b0 [sunrpc] [11208.114794] ? nfsd_svc+0x2e0/0x2e0 [nfsd] [11208.133618] ? nfsd_destroy+0x50/0x50 [nfsd] [11208.153157] svc_process+0xb7/0xf0 [sunrpc] [11208.172392] nfsd+0xe3/0x140 [nfsd] [11208.188476] kthread+0x114/0x130 [11208.203033] ? kthread_park+0x80/0x80 [11208.219513] ret_from_fork+0x22/0x30 [11208.235620] ---[ end trace a7a6ef3886bf234a ]--- On Fri, Aug 21, 2020 at 09:50:36AM +0800, Murphy Zhou wrote: > Hi Bruce, > > It's easy to reproduce by running multiple xfstests testcases on localhost > NFS shares. These testcases are: > generic/430 generic/431 generic/432 generic/433 generic/565 > > This reproduces only on NFSv4.2. > > Error log diff sample: > > --- /dev/fd/63 2020-08-09 22:46:02.771745606 -0400 > +++ results/generic/431.out.bad 2020-08-09 22:46:02.546745248 -0400 > @@ -1,15 +1,22 @@ > QA output created by 431 > Create the original file and then copy > +cmp: EOF on /mnt/testdir/test-431/copy which is empty > Original md5sums: > ab56b4d92b40713acc5af89985d4b786 TEST_DIR/test-431/file > -ab56b4d92b40713acc5af89985d4b786 TEST_DIR/test-431/copy > +d41d8cd98f00b204e9800998ecf8427e TEST_DIR/test-431/copy > Small copies from various points in the original file > +cmp: EOF on /mnt/testdir/test-431/a which is empty > +cmp: EOF on /mnt/testdir/test-431/b which is empty > +cmp: EOF on /mnt/testdir/test-431/c which is empty > +cmp: EOF on /mnt/testdir/test-431/d which is empty > +cmp: EOF on /mnt/testdir/test-431/e which is empty > +cmp: EOF on /mnt/testdir/test-431/f which is empty > md5sums after small copies > ab56b4d92b40713acc5af89985d4b786 TEST_DIR/test-431/file > -0cc175b9c0f1b6a831c399e269772661 TEST_DIR/test-431/a > -92eb5ffee6ae2fec3ad71c777531578f TEST_DIR/test-431/b > -4a8a08f09d37b73795649038408b5f33 TEST_DIR/test-431/c > -8277e0910d750195b448797616e091ad TEST_DIR/test-431/d > -e1671797c52e15f763380b45e841ec32 TEST_DIR/test-431/e > -2015eb238d706eceefc784742928054f TEST_DIR/test-431/f > +d41d8cd98f00b204e9800998ecf8427e TEST_DIR/test-431/a > +d41d8cd98f00b204e9800998ecf8427e TEST_DIR/test-431/b > +d41d8cd98f00b204e9800998ecf8427e TEST_DIR/test-431/c > +d41d8cd98f00b204e9800998ecf8427e TEST_DIR/test-431/d > +d41d8cd98f00b204e9800998ecf8427e TEST_DIR/test-431/e > +d41d8cd98f00b204e9800998ecf8427e TEST_DIR/test-431/f > d41d8cd98f00b204e9800998ecf8427e TEST_DIR/test-431/g > > Bisecting shows the first "bad" commit is: > > commit 94415b06eb8aed13481646026dc995f04a3a534a > Author: J. Bruce Fields <bfields@xxxxxxxxxx> > Date: Tue Jul 7 09:28:05 2020 -0400 > > nfsd4: a client's own opens needn't prevent delegations > > I'm wondering if you're already aware of it, this simple report is for > your info. > > Thanks. > > -- > Murphy -- Murphy
