Hi. > -----Original Message----- > From: Murphy Zhou <jencce.kernel@xxxxxxxxx> > Sent: Wednesday, May 17, 2023 10:53 AM > To: netdev@xxxxxxxxxxxxxxx; Linux-Next <linux-next@xxxxxxxxxxxxxxx>; Angus > Chen <angus.chen@xxxxxxxxxxxxxxx> > Subject: WARNING since next-20230516 about ipfrag_low_thresh_unused > > Hi, > > > > Might be this commit: > > commit b2cbac9b9b28730e9e53be20b6cdf979d3b9f27e Yes,just this commit. > Author: Angus Chen <angus.chen@xxxxxxxxxxxxxxx> > Date: Fri May 12 09:01:52 2023 +0800 > > net: Remove low_thresh in ip defrag > > Please help to take a look at. This warning keeps hitting the dmesg since the 0516 tree. Yes,it is reported by idosch two days ago,and I send a v3 patch to fix it. Should I revert b2cbac9b or just wait the robot to merge v3? Thank you. > > Thanks, > Murphy > > > > > [ 2180.527227] ------------[ cut here ]------------ > [ 2180.531902] sysctl net/ipv4/ipfrag_low_thresh: data points to > kernel global data: ipfrag_low_thresh_unused > [ 2180.541649] WARNING: CPU: 7 PID: 681484 at net/sysctl_net.c:155 > ensure_safe_net_sysctl+0x88/0x100 > [ 2180.550607] Modules linked in: dm_snapshot dm_bufio dm_flakey > binfmt_misc veth tun brd overlay exfat ext2 ext4 mbcache jbd2 cifs tls > loop nfsv3 rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache netfs > rpcrdma rdma_cm iw_cm ib_cm ib_core nfsd auth_rpcgss nfs_acl lockd > grace ipmi_ssif rfkill sunrpc vfat fat intel_rapl_msr > intel_rapl_common edac_mce_amd mgag200 kvm_amd drm_shmem_helper > drm_kms_helper kvm syscopyarea acpi_ipmi sysfillrect ipmi_si irqbypass > sysimgblt ipmi_devintf fb_sys_fops rapl pcspkr i2c_piix4 hpilo k10temp > acpi_tad ipmi_msghandler acpi_power_meter drm fuse xfs libcrc32c > sd_mod t10_pi sg igb ahci libahci crct10dif_pclmul crc32_pclmul > i2c_algo_bit crc32c_intel libata ccp hpwdt ghash_clmulni_intel dca > sp5100_tco wmi dm_mirror dm_region_hash dm_log dm_mod [last unloaded: > scsi_debug] > [ 2180.621100] CPU: 7 PID: 681484 Comm: (ostnamed) Kdump: loaded > Tainted: G W 6.4.0-rc2-next-20230516 #1 > [ 2180.631805] Hardware name: HPE ProLiant DL385 Gen11/ProLiant DL385 > Gen11, BIOS 1.10 10/18/2022 > [ 2180.640495] RIP: 0010:ensure_safe_net_sysctl+0x88/0x100 > [ 2180.645789] Code: 85 bb 72 b9 48 81 fd 00 00 a0 bc 73 b0 48 c7 c1 > dd f1 75 ba 4c 8b 43 08 48 8b 13 4c 89 e6 48 c7 c7 c0 51 86 ba e8 f8 > b8 4b ff <0f> 0b 66 81 63 14 6d ff eb 89 0f b7 4b 14 4c 8b 4b 08 48 c7 > c6 90 > [ 2180.664701] RSP: 0018:ff5e70190533bd68 EFLAGS: 00010282 > [ 2180.669986] RAX: 0000000000000000 RBX: ff40e6cadd6fea40 RCX: > 0000000000000000 > [ 2180.677189] RDX: ff40e6ce2cbec880 RSI: ff40e6ce2cbdf840 RDI: > ff40e6ce2cbdf840 > [ 2180.684399] RBP: ffffffffbc781888 R08: 0000000000000000 R09: > 00000000ffff7fff > [ 2180.691609] R10: ff5e70190533bc08 R11: ffffffffbade6888 R12: > ffffffffba85c61e > [ 2180.698819] R13: ff40e6cb201dc400 R14: 0000000000000000 R15: > 0000000000000000 > [ 2180.706029] FS: 00007f519be60b40(0000) GS:ff40e6ce2cbc0000(0000) > knlGS:0000000000000000 > [ 2180.714194] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 2180.720004] CR2: 00007f519c96efe0 CR3: 000000012878c002 CR4: > 0000000000771ee0 > [ 2180.727216] PKRU: 55555554 > [ 2180.729967] Call Trace: > [ 2180.732462] <TASK> > [ 2180.734610] register_net_sysctl+0x20/0x40 > [ 2180.738766] ipv4_frags_init_net+0xdd/0x180 > [ 2180.743001] ops_init+0x33/0xc0 > [ 2180.746190] setup_net+0x12c/0x2c0 > [ 2180.749643] copy_net_ns+0x10a/0x270 > [ 2180.753266] create_new_namespaces+0x113/0x2e0 > [ 2180.757767] unshare_nsproxy_namespaces+0x55/0xb0 > [ 2180.762534] ksys_unshare+0x1a8/0x390 > [ 2180.766251] __x64_sys_unshare+0xe/0x20 > [ 2180.770139] do_syscall_64+0x59/0x90 > [ 2180.773764] ? do_syscall_64+0x69/0x90 > [ 2180.777563] entry_SYSCALL_64_after_hwframe+0x72/0xdc > [ 2180.782672] RIP: 0033:0x7f519c03f90b > [ 2180.786299] Code: 73 01 c3 48 8b 0d 15 a5 1b 00 f7 d8 64 89 01 48 > 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 > 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e5 a4 1b 00 f7 d8 64 89 > 01 48 > [ 2180.805214] RSP: 002b:00007ffcd1b70ae8 EFLAGS: 00000246 ORIG_RAX: > 0000000000000110 > [ 2180.812866] RAX: ffffffffffffffda RBX: 0000558b7f0a95e8 RCX: > 00007f519c03f90b > [ 2180.820081] RDX: 0000000000000000 RSI: 00007ffcd1b70a50 RDI: > 0000000040000000 > [ 2180.827287] RBP: 00007ffcd1b70b20 R08: 0000000000000000 R09: > 00007ffcd1b70e20 > [ 2180.834493] R10: 0000000000000000 R11: 0000000000000246 R12: > 00007f519c6c6c52 > [ 2180.841700] R13: 00000000fffffff5 R14: 0000000040000000 R15: > 0000000000000000 > [ 2180.848912] </TASK> > [ 2180.851142] ---[ end trace 0000000000000000 ]---
