Hello,
kernel test robot noticed "WARNING:at_fs/nfsd/nfs4state.c:#nfs4_free_deleg[nfsd]" on:
commit: 59119280b27517466283f5af16ac639ef557b043 ("nfsd: allow delegation state ids to be revoked and then freed")
https://git.kernel.org/cgit/linux/kernel/git/jlayton/linux.git kdevops
in testcase: postmark
version: postmark-x86_64-1.53-0_20220517
with following parameters:
disk: 1HDD
fs: ext4
fs1: nfsv4
number: 5000n
trans: 30000s
subdirs: 100d
cpufreq_governor: performance
compiler: gcc-12
test machine: 8 threads 1 sockets Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz (Kaby Lake) with 32G memory
(please refer to attached dmesg/kmsg for entire log/backtrace)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-lkp/202311262158.f7bcb59d-oliver.sang@xxxxxxxxx
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20231126/202311262158.f7bcb59d-oliver.sang@xxxxxxxxx
[ 431.926136][ T2773] ------------[ cut here ]------------
[ 431.931417][ T2773] WARNING: CPU: 7 PID: 2773 at fs/nfsd/nfs4state.c:1075 nfs4_free_deleg+0x68/0xb0 [nfsd]
[ 431.941055][ T2773] Modules linked in: rpcsec_gss_krb5 nfsv4 dns_resolver nfsd auth_rpcgss dm_mod ipmi_devintf ipmi_msghandler btrfs intel_rapl_msr blake2b_generic intel_rapl_common xor raid6_pq libcrc32c x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel sd_mod t10_pi crc64_rocksoft_generic crc64_rocksoft kvm crc64 sg irqbypass i915 crct10dif_pclmul crc32_pclmul crc32c_intel drm_buddy ghash_clmulni_intel intel_gtt sha512_ssse3 drm_display_helper drm_kms_helper rapl ttm mei_wdt ahci intel_cstate wmi_bmof libahci video mei_me i2c_i801 intel_uncore i2c_designware_platform mei idma64 i2c_smbus libata joydev i2c_designware_core wmi intel_pmc_core acpi_pad drm fuse ip_tables
[ 432.000509][ T2773] CPU: 7 PID: 2773 Comm: nfsd Not tainted 6.7.0-rc1-00019-g59119280b275 #1
[ 432.008883][ T2773] Hardware name: Dell Inc. OptiPlex 7050/062KRH, BIOS 1.2.0 12/22/2016
[ 432.016929][ T2773] RIP: 0010:nfs4_free_deleg+0x68/0xb0 [nfsd]
[ 432.022776][ T2773] Code: 75 46 48 8b 3d 89 4c 03 00 e8 34 49 49 c0 f0 48 ff 0d 64 4c 03 00 c3 cc cc cc cc 0f 0b 48 8b 56 48 48 8d 46 48 48 39 c2 74 be <0f> 0b 48 8b 56 58 48 8d 46 58 48 39 c2 74 bc 0f 0b 48 8b 56 68 48
[ 432.042104][ T2773] RSP: 0018:ffffc900007e3ce0 EFLAGS: 00010283
[ 432.047995][ T2773] RAX: ffff8888075391d0 RBX: ffff888807539188 RCX: 0000000000000000
[ 432.055786][ T2773] RDX: ffff888154805598 RSI: ffff888807539188 RDI: ffff888807539188
[ 432.063576][ T2773] RBP: ffff888814310de0 R08: ffff88880fd35a68 R09: ffff888814310ac0
[ 432.071369][ T2773] R10: ffffc900007e3cb0 R11: ffffc900007e3cb8 R12: ffff888814310a80
[ 432.079155][ T2773] R13: ffff888154805560 R14: ffffc900007e3d50 R15: ffff8888143fa028
[ 432.086961][ T2773] FS: 0000000000000000(0000) GS:ffff8887c05c0000(0000) knlGS:0000000000000000
[ 432.095680][ T2773] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 432.102088][ T2773] CR2: 00007fa2e8a8d000 CR3: 000000081ca18005 CR4: 00000000003706f0
[ 432.109889][ T2773] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 432.117688][ T2773] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 432.125472][ T2773] Call Trace:
[ 432.128600][ T2773] <TASK>
[ 432.131383][ T2773] ? nfs4_free_deleg+0x68/0xb0 [nfsd]
[ 432.136624][ T2773] ? __warn+0x81/0x130
[ 432.140522][ T2773] ? nfs4_free_deleg+0x68/0xb0 [nfsd]
[ 432.145764][ T2773] ? report_bug+0x15d/0x1b0
[ 432.150095][ T2773] ? handle_bug+0x3c/0x70
[ 432.154265][ T2773] ? exc_invalid_op+0x17/0x70
[ 432.158764][ T2773] ? asm_exc_invalid_op+0x1a/0x20
[ 432.163610][ T2773] ? nfs4_free_deleg+0x68/0xb0 [nfsd]
[ 432.168851][ T2773] nfs4_put_stid+0x6e/0xb0 [nfsd]
[ 432.173747][ T2773] nfsd4_lookup_stateid+0x117/0x130 [nfsd]
[ 432.179417][ T2773] nfsd4_delegreturn+0xa8/0x170 [nfsd]
[ 432.184747][ T2773] nfsd4_proc_compound+0x345/0x630 [nfsd]
[ 432.190333][ T2773] nfsd_dispatch+0xfd/0x230 [nfsd]
[ 432.195317][ T2773] ? __pfx_nfsd+0x10/0x10 [nfsd]
[ 432.200120][ T2773] svc_process_common+0x2f5/0x5f0
[ 432.204967][ T2773] ? __pfx_nfsd_dispatch+0x10/0x10 [nfsd]
[ 432.210545][ T2773] ? __pfx_nfsd+0x10/0x10 [nfsd]
[ 432.215348][ T2773] svc_process+0x131/0x170
[ 432.219591][ T2773] svc_handle_xprt+0x4b0/0x5b0
[ 432.224181][ T2773] ? __pfx_nfsd+0x10/0x10 [nfsd]
[ 432.228986][ T2773] svc_recv+0x17e/0x2f0
[ 432.232981][ T2773] nfsd+0x77/0xf0 [nfsd]
[ 432.237095][ T2773] kthread+0xcd/0x130
[ 432.240905][ T2773] ? __pfx_kthread+0x10/0x10
[ 432.245340][ T2773] ret_from_fork+0x31/0x70
[ 432.249584][ T2773] ? __pfx_kthread+0x10/0x10
[ 432.254000][ T2773] ret_from_fork_asm+0x1b/0x30
[ 432.258588][ T2773] </TASK>
[ 432.261448][ T2773] ---[ end trace 0000000000000000 ]---
[ 432.266729][ T2773] ------------[ cut here ]------------
[ 432.272001][ T2773] WARNING: CPU: 7 PID: 2773 at fs/nfsd/nfs4state.c:1076 nfs4_free_deleg+0x77/0xb0 [nfsd]
[ 432.281633][ T2773] Modules linked in: rpcsec_gss_krb5 nfsv4 dns_resolver nfsd auth_rpcgss dm_mod ipmi_devintf ipmi_msghandler btrfs intel_rapl_msr blake2b_generic intel_rapl_common xor raid6_pq libcrc32c x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel sd_mod t10_pi crc64_rocksoft_generic crc64_rocksoft kvm crc64 sg irqbypass i915 crct10dif_pclmul crc32_pclmul crc32c_intel drm_buddy ghash_clmulni_intel intel_gtt sha512_ssse3 drm_display_helper drm_kms_helper rapl ttm mei_wdt ahci intel_cstate wmi_bmof libahci video mei_me i2c_i801 intel_uncore i2c_designware_platform mei idma64 i2c_smbus libata joydev i2c_designware_core wmi intel_pmc_core acpi_pad drm fuse ip_tables
[ 432.342363][ T2773] CPU: 7 PID: 2773 Comm: nfsd Tainted: G W 6.7.0-rc1-00019-g59119280b275 #1
[ 432.352660][ T2773] Hardware name: Dell Inc. OptiPlex 7050/062KRH, BIOS 1.2.0 12/22/2016
[ 432.361183][ T2773] RIP: 0010:nfs4_free_deleg+0x77/0xb0 [nfsd]
[ 432.367532][ T2773] Code: 48 ff 0d 64 4c 03 00 c3 cc cc cc cc 0f 0b 48 8b 56 48 48 8d 46 48 48 39 c2 74 be 0f 0b 48 8b 56 58 48 8d 46 58 48 39 c2 74 bc <0f> 0b 48 8b 56 68 48 8d 46 68 48 39 c2 74 ba 0f 0b eb b6 66 66 2e
[ 432.387816][ T2773] RSP: 0018:ffffc900007e3ce0 EFLAGS: 00010283
[ 432.394210][ T2773] RAX: ffff8888075391e0 RBX: ffff888807539188 RCX: 0000000000000000
[ 432.402467][ T2773] RDX: ffff888807538520 RSI: ffff888807539188 RDI: ffff888807539188
[ 432.410705][ T2773] RBP: ffff888814310de0 R08: ffff88880fd35a68 R09: ffff888814310ac0
[ 432.418929][ T2773] R10: ffffc900007e3cb0 R11: ffffc900007e3cb8 R12: ffff888814310a80
[ 432.427153][ T2773] R13: ffff888154805560 R14: ffffc900007e3d50 R15: ffff8888143fa028
[ 432.435424][ T2773] FS: 0000000000000000(0000) GS:ffff8887c05c0000(0000) knlGS:0000000000000000
[ 432.444598][ T2773] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 432.451440][ T2773] CR2: 00007fa2e8a8d000 CR3: 000000081ca18005 CR4: 00000000003706f0
[ 432.459635][ T2773] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 432.467847][ T2773] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 432.476047][ T2773] Call Trace:
[ 432.479614][ T2773] <TASK>
[ 432.482816][ T2773] ? nfs4_free_deleg+0x77/0xb0 [nfsd]
[ 432.488466][ T2773] ? __warn+0x81/0x130
[ 432.492786][ T2773] ? nfs4_free_deleg+0x77/0xb0 [nfsd]
[ 432.498449][ T2773] ? report_bug+0x15d/0x1b0
[ 432.503248][ T2773] ? handle_bug+0x3c/0x70
[ 432.507831][ T2773] ? exc_invalid_op+0x17/0x70
[ 432.512754][ T2773] ? asm_exc_invalid_op+0x1a/0x20
[ 432.518007][ T2773] ? nfs4_free_deleg+0x77/0xb0 [nfsd]
[ 432.523612][ T2773] nfs4_put_stid+0x6e/0xb0 [nfsd]
[ 432.528894][ T2773] nfsd4_lookup_stateid+0x117/0x130 [nfsd]
[ 432.534947][ T2773] nfsd4_delegreturn+0xa8/0x170 [nfsd]
[ 432.540669][ T2773] nfsd4_proc_compound+0x345/0x630 [nfsd]
[ 432.546617][ T2773] nfsd_dispatch+0xfd/0x230 [nfsd]
[ 432.551980][ T2773] ? __pfx_nfsd+0x10/0x10 [nfsd]
[ 432.557183][ T2773] svc_process_common+0x2f5/0x5f0
[ 432.562465][ T2773] ? __pfx_nfsd_dispatch+0x10/0x10 [nfsd]
[ 432.568443][ T2773] ? __pfx_nfsd+0x10/0x10 [nfsd]
[ 432.573623][ T2773] svc_process+0x131/0x170
[ 432.578320][ T2773] svc_handle_xprt+0x4b0/0x5b0
[ 432.583361][ T2773] ? __pfx_nfsd+0x10/0x10 [nfsd]
[ 432.588567][ T2773] svc_recv+0x17e/0x2f0
[ 432.592967][ T2773] nfsd+0x77/0xf0 [nfsd]
[ 432.597485][ T2773] kthread+0xcd/0x130
[ 432.601708][ T2773] ? __pfx_kthread+0x10/0x10
[ 432.606551][ T2773] ret_from_fork+0x31/0x70
[ 432.611274][ T2773] ? __pfx_kthread+0x10/0x10
[ 432.616095][ T2773] ret_from_fork_asm+0x1b/0x30
[ 432.621086][ T2773] </TASK>
[ 432.624365][ T2773] ---[ end trace 0000000000000000 ]---
[ 432.630051][ T2773] ------------[ cut here ]------------
[ 432.635729][ T2773] WARNING: CPU: 7 PID: 2773 at fs/nfsd/nfs4state.c:598 put_nfs4_file+0x5c/0x70 [nfsd]
[ 432.645518][ T2773] Modules linked in: rpcsec_gss_krb5 nfsv4 dns_resolver nfsd auth_rpcgss dm_mod ipmi_devintf ipmi_msghandler btrfs intel_rapl_msr blake2b_generic intel_rapl_common xor raid6_pq libcrc32c x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel sd_mod t10_pi crc64_rocksoft_generic crc64_rocksoft kvm crc64 sg irqbypass i915 crct10dif_pclmul crc32_pclmul crc32c_intel drm_buddy ghash_clmulni_intel intel_gtt sha512_ssse3 drm_display_helper drm_kms_helper rapl ttm mei_wdt ahci intel_cstate wmi_bmof libahci video mei_me i2c_i801 intel_uncore i2c_designware_platform mei idma64 i2c_smbus libata joydev i2c_designware_core wmi intel_pmc_core acpi_pad drm fuse ip_tables
[ 432.706995][ T2773] CPU: 7 PID: 2773 Comm: nfsd Tainted: G W 6.7.0-rc1-00019-g59119280b275 #1
[ 432.717352][ T2773] Hardware name: Dell Inc. OptiPlex 7050/062KRH, BIOS 1.2.0 12/22/2016
[ 432.725840][ T2773] RIP: 0010:put_nfs4_file+0x5c/0x70 [nfsd]
[ 432.731956][ T2773] Code: 48 39 c2 75 29 48 8b 43 38 48 8d 7b 38 48 39 c7 75 18 48 c7 c6 50 a1 f6 c0 5b e9 2f f0 23 c0 be 03 00 00 00 5b e9 a4 53 7d c0 <0f> 0b eb e4 0f 0b eb d3 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90
[ 432.752213][ T2773] RSP: 0018:ffffc900007e3d00 EFLAGS: 00010283
[ 432.758570][ T2773] RAX: ffff8888075391d0 RBX: ffff888154805560 RCX: 0000000000000041
[ 432.766808][ T2773] RDX: ffff8881548055a8 RSI: 00000000cccccccd RDI: ffff888154805598
[ 432.775045][ T2773] RBP: 0000000000000000 R08: ffff88880fd35a68 R09: ffff888814310ac0
[ 432.783331][ T2773] R10: ffffc900007e3cb0 R11: ffffc900007e3cb8 R12: 0000000000000004
[ 432.791559][ T2773] R13: 000000003f270000 R14: ffffc900007e3d50 R15: ffff8888143fa028
[ 432.799783][ T2773] FS: 0000000000000000(0000) GS:ffff8887c05c0000(0000) knlGS:0000000000000000
[ 432.808951][ T2773] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 432.815796][ T2773] CR2: 00007fa2e8a8d000 CR3: 000000081ca18005 CR4: 00000000003706f0
[ 432.824016][ T2773] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 432.832298][ T2773] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 432.840518][ T2773] Call Trace:
[ 432.844077][ T2773] <TASK>
[ 432.847349][ T2773] ? put_nfs4_file+0x5c/0x70 [nfsd]
[ 432.852843][ T2773] ? __warn+0x81/0x130
[ 432.857209][ T2773] ? put_nfs4_file+0x5c/0x70 [nfsd]
[ 432.862713][ T2773] ? report_bug+0x15d/0x1b0
[ 432.867468][ T2773] ? handle_bug+0x3c/0x70
[ 432.872041][ T2773] ? exc_invalid_op+0x17/0x70
[ 432.876950][ T2773] ? asm_exc_invalid_op+0x1a/0x20
[ 432.882233][ T2773] ? put_nfs4_file+0x5c/0x70 [nfsd]
[ 432.887705][ T2773] nfsd4_lookup_stateid+0x117/0x130 [nfsd]
[ 432.893765][ T2773] nfsd4_delegreturn+0xa8/0x170 [nfsd]
[ 432.899490][ T2773] nfsd4_proc_compound+0x345/0x630 [nfsd]
[ 432.905489][ T2773] nfsd_dispatch+0xfd/0x230 [nfsd]
[ 432.910860][ T2773] ? __pfx_nfsd+0x10/0x10 [nfsd]
[ 432.916056][ T2773] svc_process_common+0x2f5/0x5f0
[ 432.921345][ T2773] ? __pfx_nfsd_dispatch+0x10/0x10 [nfsd]
[ 432.927348][ T2773] ? __pfx_nfsd+0x10/0x10 [nfsd]
[ 432.932553][ T2773] svc_process+0x131/0x170
[ 432.937277][ T2773] svc_handle_xprt+0x4b0/0x5b0
[ 432.942342][ T2773] ? __pfx_nfsd+0x10/0x10 [nfsd]
[ 432.947543][ T2773] svc_recv+0x17e/0x2f0
[ 432.951945][ T2773] nfsd+0x77/0xf0 [nfsd]
[ 432.956461][ T2773] kthread+0xcd/0x130
[ 432.960684][ T2773] ? __pfx_kthread+0x10/0x10
[ 432.965518][ T2773] ret_from_fork+0x31/0x70
[ 432.970174][ T2773] ? __pfx_kthread+0x10/0x10
[ 432.974998][ T2773] ret_from_fork_asm+0x1b/0x30
[ 432.979995][ T2773] </TASK>
[ 432.983301][ T2773] ---[ end trace 0000000000000000 ]---
[ 432.989139][ T2773] ------------[ cut here ]------------
[ 432.994788][ T2773] refcount_t: addition on 0; use-after-free.
[ 433.001003][ T2773] WARNING: CPU: 3 PID: 2773 at lib/refcount.c:25 refcount_warn_saturate+0x9b/0x130
[ 433.010488][ T2773] Modules linked in: rpcsec_gss_krb5 nfsv4 dns_resolver nfsd auth_rpcgss dm_mod ipmi_devintf ipmi_msghandler btrfs intel_rapl_msr blake2b_generic intel_rapl_common xor raid6_pq libcrc32c x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel sd_mod t10_pi crc64_rocksoft_generic crc64_rocksoft kvm crc64 sg irqbypass i915 crct10dif_pclmul crc32_pclmul crc32c_intel drm_buddy ghash_clmulni_intel intel_gtt sha512_ssse3 drm_display_helper drm_kms_helper rapl ttm mei_wdt ahci intel_cstate wmi_bmof libahci video mei_me i2c_i801 intel_uncore i2c_designware_platform mei idma64 i2c_smbus libata joydev i2c_designware_core wmi intel_pmc_core acpi_pad drm fuse ip_tables
[ 433.072022][ T2773] CPU: 3 PID: 2773 Comm: nfsd Tainted: G W 6.7.0-rc1-00019-g59119280b275 #1
[ 433.082412][ T2773] Hardware name: Dell Inc. OptiPlex 7050/062KRH, BIOS 1.2.0 12/22/2016
[ 433.090906][ T2773] RIP: 0010:refcount_warn_saturate+0x9b/0x130
[ 433.097288][ T2773] Code: 01 01 e8 48 48 9a ff 0f 0b c3 cc cc cc cc 80 3d 54 c9 80 01 00 75 a8 48 c7 c7 58 f9 73 82 c6 05 44 c9 80 01 01 e8 25 48 9a ff <0f> 0b c3 cc cc cc cc 80 3d 30 c9 80 01 00 75 85 48 c7 c7 88 f9 73
[ 433.117589][ T2773] RSP: 0018:ffffc900007e3c08 EFLAGS: 00010282
[ 433.123941][ T2773] RAX: 0000000000000000 RBX: ffff888807539188 RCX: 0000000000000000
[ 433.132213][ T2773] RDX: ffff8887c04e8c00 RSI: ffff8887c04dc740 RDI: ffff8887c04dc740
[ 433.140458][ T2773] RBP: ffff888154805574 R08: 0000000000000000 R09: ffffc900007e3a98
[ 433.148671][ T2773] R10: 0000000000000003 R11: ffffffff82dd8f88 R12: ffff888814ab00d8
[ 433.156900][ T2773] R13: ffff888154805560 R14: ffff888101a57290 R15: 000000010002ae91
[ 433.165130][ T2773] FS: 0000000000000000(0000) GS:ffff8887c04c0000(0000) knlGS:0000000000000000
[ 433.174343][ T2773] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 433.181247][ T2773] CR2: 000055a9c30d9e18 CR3: 000000081ca18003 CR4: 00000000003706f0
[ 433.189463][ T2773] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 433.197652][ T2773] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 433.205853][ T2773] Call Trace:
[ 433.209413][ T2773] <TASK>
[ 433.212618][ T2773] ? refcount_warn_saturate+0x9b/0x130
[ 433.218355][ T2773] ? __warn+0x81/0x130
[ 433.222691][ T2773] ? refcount_warn_saturate+0x9b/0x130
[ 433.228399][ T2773] ? report_bug+0x15d/0x1b0
[ 433.233144][ T2773] ? prb_read_valid+0x1b/0x30
[ 433.238057][ T2773] ? handle_bug+0x3c/0x70
[ 433.242617][ T2773] ? exc_invalid_op+0x17/0x70
[ 433.247540][ T2773] ? asm_exc_invalid_op+0x1a/0x20
[ 433.252795][ T2773] ? refcount_warn_saturate+0x9b/0x130
[ 433.258488][ T2773] ? refcount_warn_saturate+0x9b/0x130
[ 433.264175][ T2773] nfsd_break_deleg_cb+0x161/0x170 [nfsd]
[ 433.270212][ T2773] __break_lease+0x22f/0x6b0
[ 433.275035][ T2773] vfs_unlink+0xe0/0x2b0
[ 433.279516][ T2773] nfsd_unlink+0x18a/0x330 [nfsd]
[ 433.284799][ T2773] nfsd4_remove+0x4f/0xb0 [nfsd]
[ 433.289999][ T2773] nfsd4_proc_compound+0x345/0x630 [nfsd]
[ 433.295973][ T2773] nfsd_dispatch+0xfd/0x230 [nfsd]
[ 433.301363][ T2773] ? __pfx_nfsd+0x10/0x10 [nfsd]
[ 433.306575][ T2773] svc_process_common+0x2f5/0x5f0
[ 433.311840][ T2773] ? __pfx_nfsd_dispatch+0x10/0x10 [nfsd]
[ 433.317819][ T2773] ? __pfx_nfsd+0x10/0x10 [nfsd]
[ 433.323021][ T2773] svc_process+0x131/0x170
[ 433.327679][ T2773] svc_handle_xprt+0x4b0/0x5b0
[ 433.332674][ T2773] ? __pfx_nfsd+0x10/0x10 [nfsd]
[ 433.337868][ T2773] svc_recv+0x17e/0x2f0
[ 433.342297][ T2773] nfsd+0x77/0xf0 [nfsd]
[ 433.346799][ T2773] kthread+0xcd/0x130
[ 433.351022][ T2773] ? __pfx_kthread+0x10/0x10
[ 433.355847][ T2773] ret_from_fork+0x31/0x70
[ 433.360502][ T2773] ? __pfx_kthread+0x10/0x10
[ 433.365357][ T2773] ret_from_fork_asm+0x1b/0x30
[ 433.370366][ T2773] </TASK>
[ 433.373618][ T2773] ---[ end trace 0000000000000000 ]---
[ 523.923299][ T66] list_del corruption. prev->next should be ffff8888075391d0, but was 0000000000000000. (prev=ffff888154805598)
[ 523.935302][ T66] ------------[ cut here ]------------
[ 523.941019][ T66] kernel BUG at lib/list_debug.c:62!
[ 523.946593][ T66] invalid opcode: 0000 [#1] SMP PTI
[ 523.951983][ T66] CPU: 2 PID: 66 Comm: kworker/u16:4 Tainted: G W 6.7.0-rc1-00019-g59119280b275 #1
[ 523.962807][ T66] Hardware name: Dell Inc. OptiPlex 7050/062KRH, BIOS 1.2.0 12/22/2016
[ 523.971268][ T66] Workqueue: nfsd4 laundromat_main [nfsd]
[ 523.977268][ T66] RIP: 0010:__list_del_entry_valid_or_report+0xa7/0xf0
[ 523.984344][ T66] Code: a2 ff 0f 0b 48 89 fe 48 89 ca 48 c7 c7 58 04 74 82 e8 ad 7b a2 ff 0f 0b 48 89 fe 48 89 c2 48 c7 c7 90 04 74 82 e8 99 7b a2 ff <0f> 0b 48 89 d1 48 c7 c7 e0 04 74 82 48 89 f2 48 89 c6 e8 82 7b a2
[ 524.004473][ T66] RSP: 0018:ffffc900002bbdb0 EFLAGS: 00010246
[ 524.010730][ T66] RAX: 000000000000006d RBX: ffff888807539188 RCX: 0000000000000000
[ 524.018872][ T66] RDX: 0000000000000000 RSI: ffff8887c049c740 RDI: ffff8887c049c740
[ 524.027011][ T66] RBP: ffff888154805574 R08: 0000000000000000 R09: ffffc900002bbc58
[ 524.035149][ T66] R10: 0000000000000003 R11: ffffffff82dd8f88 R12: ffff8888075391d0
[ 524.043335][ T66] R13: ffff8888075391f0 R14: ffff88881d7708b0 R15: ffff88881d7708b0
[ 524.051512][ T66] FS: 0000000000000000(0000) GS:ffff8887c0480000(0000) knlGS:0000000000000000
[ 524.060589][ T66] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 524.067380][ T66] CR2: 0000000000451c00 CR3: 000000081ca18005 CR4: 00000000003706f0
[ 524.075549][ T66] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 524.083669][ T66] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 524.091783][ T66] Call Trace:
[ 524.095297][ T66] <TASK>
[ 524.098467][ T66] ? die+0x36/0xb0
[ 524.102414][ T66] ? do_trap+0xda/0x130
[ 524.106736][ T66] ? __list_del_entry_valid_or_report+0xa7/0xf0
[ 524.113125][ T66] ? do_error_trap+0x65/0xb0
[ 524.117875][ T66] ? __list_del_entry_valid_or_report+0xa7/0xf0
[ 524.124313][ T66] ? exc_invalid_op+0x50/0x70
[ 524.129145][ T66] ? __list_del_entry_valid_or_report+0xa7/0xf0
[ 524.135571][ T66] ? asm_exc_invalid_op+0x1a/0x20
[ 524.140747][ T66] ? __list_del_entry_valid_or_report+0xa7/0xf0
[ 524.147128][ T66] unhash_delegation_locked+0xb0/0x130 [nfsd]
[ 524.153422][ T66] nfs4_laundromat+0x54c/0x6b0 [nfsd]
[ 524.158972][ T66] laundromat_main+0x19/0x70 [nfsd]
[ 524.164399][ T66] process_one_work+0x173/0x330
[ 524.169457][ T66] worker_thread+0x27f/0x3b0
[ 524.174239][ T66] ? __pfx_worker_thread+0x10/0x10
[ 524.179554][ T66] kthread+0xcd/0x130
[ 524.183698][ T66] ? __pfx_kthread+0x10/0x10
[ 524.188496][ T66] ret_from_fork+0x31/0x70
[ 524.193068][ T66] ? __pfx_kthread+0x10/0x10
[ 524.197815][ T66] ret_from_fork_asm+0x1b/0x30
[ 524.202735][ T66] </TASK>
[ 524.205930][ T66] Modules linked in: rpcsec_gss_krb5 nfsv4 dns_resolver nfsd auth_rpcgss dm_mod ipmi_devintf ipmi_msghandler btrfs intel_rapl_msr blake2b_generic intel_rapl_common xor raid6_pq libcrc32c x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel sd_mod t10_pi crc64_rocksoft_generic crc64_rocksoft kvm crc64 sg irqbypass i915 crct10dif_pclmul crc32_pclmul crc32c_intel drm_buddy ghash_clmulni_intel intel_gtt sha512_ssse3 drm_display_helper drm_kms_helper rapl ttm mei_wdt ahci intel_cstate wmi_bmof libahci video mei_me i2c_i801 intel_uncore i2c_designware_platform mei idma64 i2c_smbus libata joydev i2c_designware_core wmi intel_pmc_core acpi_pad drm fuse ip_tables
[ 524.267205][ T66] ---[ end trace 0000000000000000 ]---
[ 524.272869][ T66] RIP: 0010:__list_del_entry_valid_or_report+0xa7/0xf0
[ 524.279975][ T66] Code: a2 ff 0f 0b 48 89 fe 48 89 ca 48 c7 c7 58 04 74 82 e8 ad 7b a2 ff 0f 0b 48 89 fe 48 89 c2 48 c7 c7 90 04 74 82 e8 99 7b a2 ff <0f> 0b 48 89 d1 48 c7 c7 e0 04 74 82 48 89 f2 48 89 c6 e8 82 7b a2
[ 524.300191][ T66] RSP: 0018:ffffc900002bbdb0 EFLAGS: 00010246
[ 524.306554][ T66] RAX: 000000000000006d RBX: ffff888807539188 RCX: 0000000000000000
[ 524.314807][ T66] RDX: 0000000000000000 RSI: ffff8887c049c740 RDI: ffff8887c049c740
[ 524.323077][ T66] RBP: ffff888154805574 R08: 0000000000000000 R09: ffffc900002bbc58
[ 524.331358][ T66] R10: 0000000000000003 R11: ffffffff82dd8f88 R12: ffff8888075391d0
[ 524.339619][ T66] R13: ffff8888075391f0 R14: ffff88881d7708b0 R15: ffff88881d7708b0
[ 524.347872][ T66] FS: 0000000000000000(0000) GS:ffff8887c0480000(0000) knlGS:0000000000000000
[ 524.357080][ T66] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 524.363964][ T66] CR2: 0000000000451c00 CR3: 000000081ca18005 CR4: 00000000003706f0
[ 524.372264][ T66] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 524.380530][ T66] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 524.388778][ T66] Kernel panic - not syncing: Fatal exception
[ 524.395126][ T66] Kernel Offset: disabled
--
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https://github.com/intel/lkp-tests/wiki
