On Mon, Nov 27, 2017 at 04:24:45PM -0800, Cong Wang wrote: > We saw dozens of the following kernel waring: > > WARNING: CPU: 0 PID: 705 at fs/sysfs/group.c:224 sysfs_remove_group+0x54/0x88() > sysfs group ffffffff81ab7670 not found for kobject '6:0:3:0' > Modules linked in: cpufreq_ondemand x86_pkg_temp_thermal coretemp kvm_intel kvm microcode raid0 iTCO_wdt iTCO_vendor_support sb_edac edac_core lpc_ich mfd_core ioatdma i2c_i801 shpchp wmi hed acpi_cpufreq lp parport tcp_diag inet_diag ipmi_si ipmi_devintf ipmi_msghandler sch_fq_codel igb ptp pps_core i2c_algo_bit i2c_core crc32c_intel isci libsas scsi_transport_sas dca ipv6 > CPU: 0 PID: 705 Comm: kworker/u240:0 Not tainted 4.1.35.el7.x86_64 #1 This should by now be fixed with commit fbce4d97fd43 ("scsi: fixup kernel warning during rmmod()" which went into v4.14-rc6. -- Johannes Thumshirn Storage jthumshirn@xxxxxxx +49 911 74053 689 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg) Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850