Affter run 5 minute console show message: BUG: unable to handle kernel NULL pointer dereference at 0000000000000040 IP: [<ffffffffa02c7776>] fscache_object_slow_work_execute+0x5d9/0xad4 [fscache] PGD 0 Oops: 0002 [#1] SMP last sysfs file: /sys/devices/system/cpu/cpu3/cache/index2/shared_cpu_map CPU 1 Modules linked in: md5 nfs fuse nfsd lockd nfs_acl auth_rpcgss exportfs autofs4 hidp rfcomm l2cap bluetooth sunrpc cachefiles fscache ipip tunnel4 bonding dm_multipath scsi_dh video output sbs sbshc battery acpi_memhotplug ac ipv6 parport_pc lp parport e1000e shpchp sg i2c_i801 i3000_edac edac_core rtc_cmos rtc_core button i2c_core serio_raw floppy rtc_lib pcspkr dm_snapshot dm_zero dm_mirror dm_region_hash dm_log dm_mod usb_storage ata_piix libata sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd [last unloaded: freq_table] Pid: 4136, comm: kslowd Not tainted 2.6.30.2 #3 PDSML RIP: 0010:[<ffffffffa02c7776>] [<ffffffffa02c7776>] fscache_object_slow_work_execute+0x5d9/0xad4 [fscache] RSP: 0018:ffff8802120ffea0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8800e4c98ef8 RCX: 0000000000000000 RDX: ffff880215c621c0 RSI: 0000000000000007 RDI: ffff8800e4c98e9c RBP: ffff8800e4c98e80 R08: ffffffff807f18c0 R09: 0000000000000000 R10: ffffffff807f18c0 R11: 0000000000000000 R12: 0000000000000032 R13: 00000001000bf349 R14: ffffffff807f4160 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff880028063000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 0000000000000040 CR3: 0000000000201000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process kslowd (pid: 4136, threadinfo ffff8802120fe000, task ffff880215db37b0) Stack: 0000000000000287 ffff8800e4c98ef8 0000000000000001 0000000000000032 ffffffff807f18c0 ffffffff80279056 00000003170d74b0 ffff880207157d60 0000000000000000 ffff880215db37b0 ffffffff8024a4fe ffff8802120ffef8 Call Trace: [<ffffffff80279056>] ? slow_work_thread+0x285/0x43a [<ffffffff8024a4fe>] ? autoremove_wake_function+0x0/0x2e [<ffffffff80278dd1>] ? slow_work_thread+0x0/0x43a [<ffffffff8024a3cf>] ? kthread+0x54/0x81 [<ffffffff8020c93a>] ? child_rip+0xa/0x20 [<ffffffff8020c44e>] ? apic_timer_interrupt+0xe/0x20 [<ffffffff8024a37b>] ? kthread+0x0/0x81 [<ffffffff8020c930>] ? child_rip+0x0/0x20 Code: e9 f4 03 00 00 48 8b 45 60 48 83 65 28 fd 48 89 ef 48 8b 00 ff 50 18 48 8d 7d 1c e8 c4 1c 1f e0 c7 45 00 06 00 00 00 48 8b 45 68 <f0> 0f ba 70 40 01 19 d2 85 d2 74 12 48 8b 7d 68 be 01 00 00 00 RIP [<ffffffffa02c7776>] fscache_object_slow_work_execute+0x5d9/0xad4 [fscache] RSP <ffff8802120ffea0> CR2: 0000000000000040 ---[ end trace 0ac793d0a1e3af8c ]--- BUG: unable to handle kernel NULL pointer dereference at 0000000000000040 IP: [<ffffffffa02c7776>] fscache_object_slow_work_execute+0x5d9/0xad4 [fscache] PGD 203992067 PUD 20241b067 PMD 0 Oops: 0002 [#2] SMP last sysfs file: /sys/devices/system/cpu/cpu3/cache/index2/shared_cpu_map CPU 0 Modules linked in: md5 nfs fuse nfsd lockd nfs_acl auth_rpcgss exportfs autofs4 hidp rfcomm l2cap bluetooth sunrpc cachefiles fscache ipip tunnel4 bonding dm_multipath scsi_dh video output sbs sbshc battery acpi_memhotplug ac ipv6 parport_pc lp parport e1000e shpchp sg i2c_i801 i3000_edac edac_core rtc_cmos rtc_core button i2c_core serio_raw floppy rtc_lib pcspkr dm_snapshot dm_zero dm_mirror dm_region_hash dm_log dm_mod usb_storage ata_piix libata sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd [last unloaded: freq_table] Pid: 4279, comm: kslowd Tainted: G D 2.6.30.2 #3 PDSML RIP: 0010:[<ffffffffa02c7776>] [<ffffffffa02c7776>] fscache_object_slow_work_execute+0x5d9/0xad4 [fscache] RSP: 0018:ffff880203973ea0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8800e4d41db8 RCX: 0000000000000001 RDX: ffff880215c621c0 RSI: 0000000000000007 RDI: ffff8800e4d41d5c RBP: ffff8800e4d41d40 R08: 0000000000000287 R09: ffff88002802f460 R10: 0000000000000287 R11: 0000000000000000 R12: 0000000000000032 R13: 00000001000ebf2e R14: ffffffff807f4160 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88002804b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 0000000000000040 CR3: 0000000206120000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process kslowd (pid: 4279, threadinfo ffff880203972000, task ffff8801fd22d5f0) Stack: 0000000000000287 ffff8800e4d41db8 0000000000000001 0000000000000032 ffffffff807f18c0 ffffffff80279056 00000003158b14f0 ffff8802120ffd60 0000000000000000 ffff8801fd22d5f0 ffffffff8024a4fe ffff880203973ef8 Call Trace: [<ffffffff80279056>] ? slow_work_thread+0x285/0x43a [<ffffffff8024a4fe>] ? autoremove_wake_function+0x0/0x2e [<ffffffff80278dd1>] ? slow_work_thread+0x0/0x43a [<ffffffff8024a3cf>] ? kthread+0x54/0x81 [<ffffffff8020c93a>] ? child_rip+0xa/0x20 [<ffffffff8020c44e>] ? apic_timer_interrupt+0xe/0x20 [<ffffffff8024a37b>] ? kthread+0x0/0x81 [<ffffffff8020c930>] ? child_rip+0x0/0x20 Code: e9 f4 03 00 00 48 8b 45 60 48 83 65 28 fd 48 89 ef 48 8b 00 ff 50 18 48 8d 7d 1c e8 c4 1c 1f e0 c7 45 00 06 00 00 00 48 8b 45 68 <f0> 0f ba 70 40 01 19 d2 85 d2 74 12 48 8b 7d 68 be 01 00 00 00 RIP [<ffffffffa02c7776>] fscache_object_slow_work_execute+0x5d9/0xad4 [fscache] RSP <ffff880203973ea0> CR2: 0000000000000040 ---[ end trace 0ac793d0a1e3af8d ]--- [root@sannhac127 ~]# -- Linux-cachefs mailing list Linux-cachefs@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cachefs