Server Panic rebooted "double fault: 0000 [#1] SMP" due to third party kernel module cdr inside function cxfs_check_and_recall.
Issue
[ 4632.324924] double fault: 0000 [#1] SMP
[ 4632.325706] Modules linked in: rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache ext4 mbcache jbd2 cdr(POE) krg_569909_imRH7_K1S_smp64(POE) xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 tun bridge stp llc symap_rh_ES_7_3_10_0_862_9_1_el7_x86_64(POE) ebtable_filter ebtables ip6_tables devlink iptable_filter symev_rh_ES_7_3_10_0_862_9_1_el7_x86_64(OE) udp_diag tcp_diag inet_diag vmw_vsock_vmci_transport vsock ppdev iosf_mbi crc32_pclmul ghash_clmulni_intel vmw_balloon aesni_intel lrw gf128mul glue_helper ablk_helper cryptd joydev pcspkr sg vmw_vmci i2c_piix4 parport_pc parport nfsd nfs_acl lockd binfmt_misc grace auth_rpcgss sunrpc ip_tables xfs libcrc32c sr_mod cdrom
[ 4632.329150] sd_mod crc_t10dif ata_generic crct10dif_generic pata_acpi vmwgfx drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm ata_piix drm nfit crct10dif_pclmul mptsas crct10dif_common crc32c_intel scsi_transport_sas libata libnvdimm mptscsih e1000 serio_raw mptbase vmxnet3 vmw_pvscsi drm_panel_orientation_quirks dm_mirror dm_region_hash dm_log dm_mod fuse [last unloaded: cdr]
[ 4632.331176] CPU: 6 PID: 32668 Comm: rtvscand Kdump: loaded Tainted: P W OE ------------ 3.10.0-1160.53.1.el7.x86_64 #1
[ 4632.332011] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 12/12/2018
[ 4632.332902] task: ffff8e8ac18e3180 ti: ffff8e8ab35e0000 task.ti: ffff8e8ab35e0000
[ 4632.333560] RIP: 0010:[<ffffffffc073215c>] [<ffffffffc073215c>] cxfs_check_and_recall+0x1c/0xa70 [cdr] <---
[ 4632.334250] RSP: 0018:ffff8e8ab3580f90 EFLAGS: 00210286
[ 4632.334919] RAX: ffff8e8ab35810c4 RBX: ffff8e8ac25da000 RCX: ffff8e891d57b080
[ 4632.335641] RDX: ffff8e893a4db200 RSI: ffffffffc073aaa2 RDI: ffff8e8ac25da000
[ 4632.336318] RBP: ffff8e8ab3581090 R08: ffff8e891d4589f8 R09: ffff8e8ab35810c0
[ 4632.337052] R10: ffff8e8ab35e39b0 R11: 000000000000000b R12: ffff8e893a4db200
[ 4632.337744] R13: 0000000000000000 R14: ffff8e71a31cfb10 R15: ffff8e8ac25da000
[ 4632.338492] FS: 0000000000000000(0000) GS:ffff8e8d0d780000(0063) knlGS:00000000e5881b40
[ 4632.339121] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
[ 4632.339843] CR2: ffff8e8ab3580f88 CR3: 00000019899aa000 CR4: 00000000007607e0
[ 4632.340781] PKRU: 55555554
[ 4632.341752] Call Trace:
[ 4632.342760] Code: 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 41 57 49 89 ff 41 56 41 55 41 54 53 48 81 ec d8 00 00 00 <48> 89 8d 30 ff ff ff 44 8b 9f 10 04 00 00 48 8b 4d 10 48 89 b5
[ 4632.344910] RIP [<ffffffffc073215c>] cxfs_check_and_recall+0x1c/0xa70 [cdr] <----
[ 4632.346033] RSP <ffff8e8ab3580f90>
Environment
- Red Hat Enterprise Linux
- Third-party kernel module [cdr]
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