This patch is based on Linus's tree I could use some help with this patch. We are adding in the sas transport layer for our HBA devices. I am having issues removing the sas transport entries during driver unload. The entries are removed in what appears to be the proper order but I am getting a bunch of warnings that look like what is shown below. I do not see these warnings with 3.10 kernels but I do see them with 4.3-rc2+. I have searched the lkml mailing list for resolution and found a fix for a similar issue: http://marc.info/?l=linux-scsi&m=143743743518987&w=2 But this did not resolve my problem. I am attaching the patch and the console logs. Can anyone give me some advice with this issue? Typical warning message: (Seen for both port and end_device objects) [ 247.567655] WARNING: CPU: 52 PID: 14975 at fs/sysfs/group.c:224 sysfs_remove_group+0x8d/0x90() [ 247.611154] sysfs group ffffffff81a73000 not found for kobject 'port-5:0' [ 247.645110] Modules linked in: hpsa(OE-) scsi_transport_sas ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT nf_reject_ipv4 nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack cfg80211 nf_conntrack rfkill ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_mangle iptable_security iptable_raw iptable_filter ip_tables sg x86_pkg_temp_thermal coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul nfsd crc32c_intel ghash_clmulni_intel aesni_intel lrw gf128mul auth_rpcgss ipmi_devintf hpilo hpwdt glue_helper sb_edac nfs_acl iTCO_wdt ablk_helper lockd cryptd iTCO_vendor_support edac_core serio_raw ioatdma shpchp pcspkr ipmi_si lpc_ich wmi mfd_core dca ipmi_msghandler grace pcc_cpufreq [ 248.001829] acpi_power_meter acpi_cpufreq sunrpc uinput xfs libcrc32c sd_mod mgag200 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm usb_storage tg3 ptp i2c_core pps_core dm_mirror dm_region_hash dm_log dm_mod [ 248.102395] CPU: 52 PID: 14975 Comm: rmmod Tainted: G OE 4.3.0-rc2+ #1 [ 248.140420] Hardware name: HP ProLiant DL580 Gen8, BIOS P79 05/06/2015 [ 248.172430] 0000000000000000 00000000dce8a349 ffff8808582afb78 ffffffff81312230 [ 248.209532] ffff8808582afbc0 ffff8808582afbb0 ffffffff8107ae26 0000000000000000 [ 248.246473] ffffffff81a73000 ffff881858a55838 ffff881858a50c00 ffff881858a50f10 [ 248.283094] Call Trace: [ 248.295019] [<ffffffff81312230>] dump_stack+0x44/0x64 [ 248.320346] [<ffffffff8107ae26>] warn_slowpath_common+0x86/0xc0 [ 248.351167] [<ffffffff8107aebc>] warn_slowpath_fmt+0x5c/0x80 [ 248.379273] [<ffffffff8126b508>] ? kernfs_find_and_get_ns+0x48/0x60 [ 248.410729] [<ffffffff8126ea5d>] sysfs_remove_group+0x8d/0x90 [ 248.439875] [<ffffffff81440877>] dpm_sysfs_remove+0x57/0x60 [ 248.468564] [<ffffffff81434378>] device_del+0x58/0x260 [ 248.494859] [<ffffffff814339a9>] ? device_remove_file+0x19/0x20 [ 248.524099] [<ffffffff8143d8da>] attribute_container_class_device_del+0x1a/0x20 [ 248.560407] [<ffffffff8143dade>] transport_remove_classdev+0x4e/0x60 [ 248.591673] [<ffffffff8143da90>] ? transport_add_class_device+0x40/0x40 [ 248.626510] [<ffffffff8143d4be>] attribute_container_device_trigger+0xce/0xe0 [ 248.661392] [<ffffffff8143da45>] transport_remove_device+0x15/0x20 [ 248.692653] [<ffffffffa03eaec3>] sas_port_delete+0x123/0x150 [scsi_transport_sas] [ 248.732777] [<ffffffffa03f4c72>] hpsa_free_sas_port+0x42/0xc0 [hpsa] [ 248.769411] [<ffffffffa03f6e4c>] hpsa_free_sas_node.part.58+0x7c/0xb0 [hpsa] [ 248.805243] [<ffffffffa03fc10a>] hpsa_remove_one+0x1aa/0x1f0 [hpsa] [ 248.836752] [<ffffffff813505b9>] pci_device_remove+0x39/0xc0 [ 248.864460] [<ffffffff81439216>] __device_release_driver+0x96/0x130 [ 248.894875] [<ffffffff814393b5>] driver_detach+0xb5/0xc0 [ 248.920994] [<ffffffff81438395>] bus_remove_driver+0x55/0xd0 [ 248.949451] [<ffffffff81439b1c>] driver_unregister+0x2c/0x50 [ 248.977606] [<ffffffff8134ecfa>] pci_unregister_driver+0x2a/0x80 [ 249.007758] [<ffffffffa0402df7>] hpsa_cleanup+0x10/0x219 [hpsa] [ 249.037334] [<ffffffff810fbebd>] SyS_delete_module+0x18d/0x220 [ 249.066208] [<ffffffff81003cd5>] ? syscall_return_slowpath+0x55/0x150 [ 249.098215] [<ffffffff8166b0ee>] entry_SYSCALL_64_fastpath+0x12/0x71 [ 249.130809] ---[ end trace da8892bb8b64bbf0 ]--- --- Kevin Barnett (1): hpsa: add in sas transport drivers/scsi/hpsa.c | 704 ++++++++++++++++++++++++++++++++++++++++++----- drivers/scsi/hpsa.h | 37 ++ drivers/scsi/hpsa_cmd.h | 14 + 3 files changed, 677 insertions(+), 78 deletions(-) -- Signature -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
