Re: [PATCH v4] pipe: use __pipe_{lock,unlock} instead of spinlock

[Luis Chamberlain]

On Mon, Feb 06, 2023 at 07:45:25PM +0300, Dan Carpenter wrote:
> On Mon, Feb 06, 2023 at 05:13:02PM +0100, Julia Lawall wrote:
> > An analysis with Coccinelle may be highly prone to false positives if the
> > issue is very interprocedural.  Maybe smatch would be better suited for
> > this?
> 
> I have a very good Smatch check for sleeping with preempt disabled
> which would have detected this bug.

Oh nice!

> Where my check falls down is when the call tree is quite long.
> Especially if the call tree is very long and there is some kind of
> a MAY_SLEEP flag which is set and then checked several functions calls
> down the call tree.
> 
> The unfortunate thing is that there are lot of sleeping in atomic bugs
> and they are quite complicated to analyze because the call trees are
> long so I'm not up to date on reviewing the warnings...  You need the
> cross function database to review these warnings.  The warning looks
> like:
> 
> drivers/accel/habanalabs/common/context.c:112 hl_ctx_fini() warn: sleeping in atomic context
> 
> That code looks like:
>    111                  if (hdev->in_debug)
>    112                          hl_device_set_debug_mode(hdev, ctx, false);
>    113  
> 
> hl_device_set_debug_mode() take a mutex.  Then you do
> `smdb.py preempt hl_ctx_fini` and it prints out the call tree which
> disables preemption.
> 
> cs_ioctl_unreserve_signals() <- disables preempt

ok because of the spin_lock()

> -> hl_ctx_put()
>    -> hl_ctx_do_release()
>       -> hl_ctx_fini()
> 
> And so on.  The unreviewed list is going to have more bugs and the other
> list is probably mostly false positives outside of the staging/
> directory.
> 
> regards,
> dan carpenter
> 

> arch/x86/kernel/apic/x2apic_uv_x.c:1230 uv_set_vga_state() warn: sleeping in atomic context
> arch/x86/kernel/fpu/xstate.c:1476 fpstate_free() warn: sleeping in atomic context
> arch/x86/kernel/kvm.c:157 kvm_async_pf_task_wait_schedule() warn: sleeping in atomic context
> arch/x86/kernel/step.c:36 convert_ip_to_linear() warn: sleeping in atomic context
> arch/x86/lib/insn-eval.c:634 get_desc() warn: sleeping in atomic context
> arch/x86/mm/ioremap.c:471 iounmap() warn: sleeping in atomic context
> arch/x86/mm/mmio-mod.c:318 mmiotrace_iounmap() warn: sleeping in atomic context
> arch/x86/platform/uv/bios_uv.c:171 uv_bios_set_legacy_vga_target() warn: sleeping in atomic context
> arch/x86/platform/uv/bios_uv.c:45 uv_bios_call() warn: sleeping in atomic context
> arch/x86/xen/p2m.c:189 alloc_p2m_page() warn: sleeping in atomic context
> block/blk-crypto-profile.c:382 __blk_crypto_evict_key() warn: sleeping in atomic context
> block/blk-crypto-profile.c:390 __blk_crypto_evict_key() warn: sleeping in atomic context
> block/blk-crypto-profile.c:54 blk_crypto_hw_enter() warn: sleeping in atomic context
> block/blk-mq.c:166 blk_freeze_queue_start() warn: sleeping in atomic context
> block/blk-mq.c:206 blk_freeze_queue() warn: sleeping in atomic context
> block/blk-mq.c:216 blk_mq_freeze_queue() warn: sleeping in atomic context
> block/blk-mq.c:2174 __blk_mq_run_hw_queue() warn: sleeping in atomic context
> block/blk-mq.c:4083 blk_mq_destroy_queue() warn: sleeping in atomic context

Let's see as an example.

blk_mq_exit_hctx() can spin_lock() and so could disable preemption but I
can't see why this is sleeping in atomic context.

  Luis

> block/blk-wbt.c:673 wbt_enable_default() warn: sleeping in atomic context
> block/blk-wbt.c:843 wbt_init() warn: sleeping in atomic context
> drivers/accel/habanalabs/common/context.c:112 hl_ctx_fini() warn: sleeping in atomic context
> drivers/accel/habanalabs/common/context.c:141 hl_ctx_do_release() warn: sleeping in atomic context
> drivers/accel/habanalabs/common/debugfs.c:272 vm_show() warn: sleeping in atomic context
> drivers/accel/habanalabs/common/device.c:1071 hl_device_set_debug_mode() warn: sleeping in atomic context
> drivers/accel/habanalabs/common/memory.c:1300 unmap_device_va() warn: sleeping in atomic context
> drivers/accel/habanalabs/common/memory.c:2842 hl_vm_ctx_fini() warn: sleeping in atomic context
> drivers/acpi/osl.c:927 acpi_debugger_write_log() warn: sleeping in atomic context
> drivers/base/core.c:189 device_links_write_lock() warn: sleeping in atomic context
> drivers/base/core.c:681 device_link_add() warn: sleeping in atomic context
> drivers/base/firmware_loader/main.c:587 firmware_free_data() warn: sleeping in atomic context
> drivers/base/firmware_loader/main.c:815 _request_firmware() warn: sleeping in atomic context
> drivers/base/power/runtime.c:1137 __pm_runtime_suspend() warn: sleeping in atomic context
> drivers/base/power/sysfs.c:779 wakeup_sysfs_add() warn: sleeping in atomic context
> drivers/base/power/sysfs.c:789 wakeup_sysfs_remove() warn: sleeping in atomic context
> drivers/base/power/wakeup.c:225 wakeup_source_register() warn: sleeping in atomic context
> drivers/base/power/wakeup.c:348 device_wakeup_enable() warn: sleeping in atomic context
> drivers/base/power/wakeup.c:91 wakeup_source_create() warn: sleeping in atomic context
> drivers/base/regmap/regmap.c:1790 _regmap_raw_write_impl() warn: sleeping in atomic context
> drivers/base/regmap/regmap.c:1855 _regmap_raw_write_impl() warn: sleeping in atomic context
> drivers/block/aoe/aoedev.c:229 aoedev_downdev() warn: sleeping in atomic context
> drivers/clk/clk.c:133 clk_prepare_lock() warn: sleeping in atomic context
> drivers/clk/clk.c:404 clk_core_get() warn: sleeping in atomic context
> drivers/clk/clk.c:5077 of_clk_get_hw_from_clkspec() warn: sleeping in atomic context
> drivers/clk/clkdev.c:77 clk_find_hw() warn: sleeping in atomic context
> drivers/crypto/hisilicon/sec/sec_algs.c:389 sec_send_request() warn: sleeping in atomic context
> drivers/crypto/hisilicon/sec/sec_algs.c:494 sec_skcipher_alg_callback() warn: sleeping in atomic context
> drivers/crypto/hisilicon/sec/sec_algs.c:506 sec_skcipher_alg_callback() warn: sleeping in atomic context
> drivers/crypto/hisilicon/sec/sec_algs.c:824 sec_alg_skcipher_crypto() warn: sleeping in atomic context
> drivers/crypto/hisilicon/sec/sec_drv.c:864 sec_queue_send() warn: sleeping in atomic context
> drivers/dma/dmaengine.c:905 dma_release_channel() warn: sleeping in atomic context
> drivers/gpio/gpio-aggregator.c:299 gpio_fwd_get_multiple() warn: sleeping in atomic context
> drivers/gpio/gpio-aggregator.c:355 gpio_fwd_set_multiple() warn: sleeping in atomic context
> drivers/gpio/gpio-it87.c:157 it87_gpio_request() warn: sleeping in atomic context
> drivers/gpio/gpio-it87.c:202 it87_gpio_direction_in() warn: sleeping in atomic context
> drivers/gpio/gpio-it87.c:245 it87_gpio_direction_out() warn: sleeping in atomic context
> drivers/gpio/gpio-it87.c:82 superio_enter() warn: sleeping in atomic context
> drivers/gpio/gpiolib.c:3263 gpiod_set_consumer_name() warn: sleeping in atomic context
> drivers/gpio/gpiolib.c:3516 gpiod_get_value_cansleep() warn: sleeping in atomic context
> drivers/gpio/gpiolib.c:3573 gpiod_get_array_value_cansleep() warn: sleeping in atomic context
> drivers/gpio/gpiolib.c:3612 gpiod_set_value_cansleep() warn: sleeping in atomic context
> drivers/gpio/gpiolib.c:3677 gpiod_set_array_value_cansleep() warn: sleeping in atomic context
> drivers/gpio/gpiolib-devres.c:118 devm_gpiod_get_index() warn: sleeping in atomic context
> drivers/gpu/drm/i915/gt/intel_gt_mcr.c:379 intel_gt_mcr_lock() warn: sleeping in atomic context
> drivers/gpu/drm/i915/gt/intel_ring.c:216 wait_for_space() warn: sleeping in atomic context
> drivers/gpu/drm/i915/gt/selftest_lrc.c:1721 garbage_reset() warn: sleeping in atomic context
> drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c:660 ct_send() warn: sleeping in atomic context
> drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c:784 intel_guc_ct_send() warn: sleeping in atomic context
> drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c:2007 new_guc_id() warn: sleeping in atomic context
> drivers/gpu/drm/i915/i915_request.c:1982 i915_request_wait_timeout() warn: sleeping in atomic context
> drivers/gpu/drm/i915/i915_request.c:2117 i915_request_wait() warn: sleeping in atomic context
> drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c:372 update_cursor() warn: sleeping in atomic context
> drivers/gpu/drm/msm/msm_gem.c:495 msm_gem_get_and_pin_iova_range() warn: sleeping in atomic context
> drivers/gpu/drm/msm/msm_gem.c:506 msm_gem_get_and_pin_iova() warn: sleeping in atomic context
> drivers/gpu/drm/msm/msm_gem.h:185 msm_gem_lock() warn: sleeping in atomic context
> drivers/gpu/drm/nouveau/nvif/object.c:149 nvif_object_mthd() warn: sleeping in atomic context
> drivers/gpu/drm/nouveau/nvkm/core/subdev.c:200 nvkm_subdev_ref() warn: sleeping in atomic context
> drivers/gpu/drm/vmwgfx/vmwgfx_msg.c:516 vmw_host_printf() warn: sleeping in atomic context
> drivers/hid/hid-core.c:1935 __hid_request() warn: sleeping in atomic context
> drivers/hid/hid-core.c:2379 hid_hw_request() warn: sleeping in atomic context
> drivers/infiniband/core/restrack.c:351 rdma_restrack_del() warn: sleeping in atomic context
> drivers/infiniband/core/verbs.c:971 rdma_destroy_ah_user() warn: sleeping in atomic context
> drivers/leds/leds-ns2.c:96 ns2_led_set_mode() warn: sleeping in atomic context
> drivers/mailbox/mailbox.c:280 mbox_send_message() warn: sleeping in atomic context
> drivers/media/pci/cx88/cx88-alsa.c:743 snd_cx88_switch_put() warn: sleeping in atomic context
> drivers/media/v4l2-core/v4l2-ctrls-core.c:1396 find_ref_lock() warn: sleeping in atomic context
> drivers/mfd/ezx-pcap.c:102 ezx_pcap_read() warn: sleeping in atomic context
> drivers/mfd/ezx-pcap.c:117 ezx_pcap_set_bits() warn: sleeping in atomic context
> drivers/mfd/ezx-pcap.c:220 pcap_set_ts_bits() warn: sleeping in atomic context
> drivers/mfd/ezx-pcap.c:232 pcap_disable_adc() warn: sleeping in atomic context
> drivers/mfd/ezx-pcap.c:247 pcap_adc_trigger() warn: sleeping in atomic context
> drivers/mfd/ezx-pcap.c:252 pcap_adc_trigger() warn: sleeping in atomic context
> drivers/mfd/ezx-pcap.c:280 pcap_adc_irq() warn: sleeping in atomic context
> drivers/mfd/ezx-pcap.c:69 ezx_pcap_putget() warn: sleeping in atomic context
> drivers/mfd/ezx-pcap.c:86 ezx_pcap_write() warn: sleeping in atomic context
> drivers/misc/sgi-gru/grukservices.c:262 gru_get_cpu_resources() warn: sleeping in atomic context
> drivers/mmc/core/slot-gpio.c:69 mmc_gpio_get_ro() warn: sleeping in atomic context
> drivers/mmc/host/sdhci.c:1304 sdhci_external_dma_release() warn: sleeping in atomic context
> drivers/net/ethernet/amd/xgbe/xgbe-drv.c:976 xgbe_napi_disable() warn: sleeping in atomic context
> drivers/net/ethernet/amd/xgbe/xgbe-drv.c:982 xgbe_napi_disable() warn: sleeping in atomic context
> drivers/net/ethernet/cadence/macb_main.c:5159 macb_suspend() warn: sleeping in atomic context
> drivers/net/ethernet/cadence/macb_main.c:5171 macb_suspend() warn: sleeping in atomic context
> drivers/net/ethernet/cadence/macb_main.c:5250 macb_resume() warn: sleeping in atomic context
> drivers/net/ethernet/cavium/liquidio/octeon_device.c:704 octeon_allocate_device_mem() warn: sleeping in atomic context
> drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c:200 t4vf_wr_mbox_core() warn: sleeping in atomic context
> drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c:256 t4vf_wr_mbox_core() warn: sleeping in atomic context
> drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c:218 alloc_ctrl_skb() warn: sleeping in atomic context
> drivers/net/ethernet/chelsio/libcxgb/libcxgb_ppm.c:330 ppm_destroy() warn: sleeping in atomic context
> drivers/net/ethernet/chelsio/libcxgb/libcxgb_ppm.c:338 cxgbi_ppm_release() warn: sleeping in atomic context
> drivers/net/ethernet/davicom/dm9000.c:329 dm9000_phy_write() warn: sleeping in atomic context
> drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c:917 ixgbe_ipsec_vf_add_sa() warn: sleeping in atomic context
> drivers/net/ethernet/mellanox/mlx5/core/cmd.c:1861 cmd_exec() warn: sleeping in atomic context
> drivers/net/ethernet/netronome/nfp/flower/lag_conf.c:167 nfp_fl_lag_get_group_info() warn: sleeping in atomic context
> drivers/net/ethernet/netronome/nfp/flower/lag_conf.c:211 nfp_flower_lag_get_info_from_netdev() warn: sleeping in atomic context
> drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c:518 nfp_tun_write_neigh() warn: sleeping in atomic context
> drivers/net/ethernet/nvidia/forcedeth.c:1091 nv_disable_irq() warn: sleeping in atomic context
> drivers/net/ethernet/nvidia/forcedeth.c:1093 nv_disable_irq() warn: sleeping in atomic context
> drivers/net/ethernet/nvidia/forcedeth.c:1095 nv_disable_irq() warn: sleeping in atomic context
> drivers/net/ethernet/nvidia/forcedeth.c:4889 nv_set_loopback() warn: sleeping in atomic context
> drivers/net/ethernet/nvidia/forcedeth.c:4915 nv_set_loopback() warn: sleeping in atomic context
> drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c:303 netxen_pcie_sem_lock() warn: sleeping in atomic context
> drivers/net/ethernet/qlogic/qed/qed_mcp.c:200 qed_load_mcp_offsets() warn: sleeping in atomic context
> drivers/net/ethernet/rocker/rocker_main.c:1080 rocker_cmd_exec() warn: sleeping in atomic context
> drivers/net/ethernet/rocker/rocker_main.c:84 rocker_wait_event_timeout() warn: sleeping in atomic context
> drivers/net/phy/mdio_bus.c:1053 mdiobus_read() warn: sleeping in atomic context
> drivers/net/phy/mdio_bus.c:1076 mdiobus_c45_read() warn: sleeping in atomic context
> drivers/net/phy/mdio_bus.c:1152 mdiobus_write() warn: sleeping in atomic context
> drivers/net/phy/mdio_bus.c:1177 mdiobus_c45_write() warn: sleeping in atomic context
> drivers/net/phy/phy.c:1027 phy_ethtool_ksettings_set() warn: sleeping in atomic context
> drivers/net/phy/phy.c:330 phy_mii_ioctl() warn: sleeping in atomic context
> drivers/net/phy/phy.c:334 phy_mii_ioctl() warn: sleeping in atomic context
> drivers/net/phy/phy.c:386 phy_mii_ioctl() warn: sleeping in atomic context
> drivers/net/phy/phy.c:388 phy_mii_ioctl() warn: sleeping in atomic context
> drivers/net/wireless/ath/ath11k/peer.c:396 ath11k_peer_create() warn: sleeping in atomic context
> drivers/net/wireless/broadcom/b43legacy/main.c:2832 b43legacy_op_bss_info_changed() warn: sleeping in atomic context
> drivers/net/wireless/broadcom/b43legacy/main.c:590 b43legacy_synchronize_irq() warn: sleeping in atomic context
> drivers/net/wireless/broadcom/b43legacy/radio.c:213 b43legacy_synth_pu_workaround() warn: sleeping in atomic context
> drivers/net/wireless/broadcom/b43legacy/radio.c:604 b43legacy_calc_nrssi_slope() warn: sleeping in atomic context
> drivers/net/wireless/broadcom/b43legacy/radio.c:780 b43legacy_calc_nrssi_slope() warn: sleeping in atomic context
> drivers/net/wireless/intel/iwlegacy/common.c:1844 il_send_add_sta() warn: sleeping in atomic context
> drivers/net/wireless/intersil/orinoco/fw.c:114 orinoco_dl_firmware() warn: sleeping in atomic context
> drivers/net/wireless/intersil/orinoco/fw.c:224 symbol_dl_image() warn: sleeping in atomic context
> drivers/net/wireless/intersil/orinoco/fw.c:339 orinoco_download() warn: sleeping in atomic context
> drivers/net/wwan/t7xx/t7xx_state_monitor.c:416 t7xx_fsm_append_cmd() warn: sleeping in atomic context
> drivers/nvme/host/core.c:4931 nvme_remove_admin_tag_set() warn: sleeping in atomic context
> drivers/nvme/host/core.c:4993 nvme_remove_io_tag_set() warn: sleeping in atomic context
> drivers/nvme/host/core.c:571 nvme_change_ctrl_state() warn: sleeping in atomic context
> drivers/nvme/host/fc.c:2408 nvme_fc_ctrl_free() warn: sleeping in atomic context
> drivers/nvme/host/multipath.c:146 nvme_kick_requeue_lists() warn: sleeping in atomic context
> drivers/nvme/target/fc.c:495 nvmet_fc_xmt_disconnect_assoc() warn: sleeping in atomic context
> drivers/pci/iov.c:888 sriov_restore_state() warn: sleeping in atomic context
> drivers/pci/msi/msi.c:864 __pci_restore_msix_state() warn: sleeping in atomic context
> drivers/pci/pci.c:5376 __pci_reset_function_locked() warn: sleeping in atomic context
> drivers/pci/pci.c:855 pci_wait_for_pending() warn: sleeping in atomic context
> drivers/pci/pcie/aspm.c:1094 pcie_aspm_powersave_config_link() warn: sleeping in atomic context
> drivers/pci/probe.c:2360 pci_bus_wait_crs() warn: sleeping in atomic context
> drivers/pcmcia/pcmcia_resource.c:168 pcmcia_access_config() warn: sleeping in atomic context
> drivers/pcmcia/pcmcia_resource.c:208 pcmcia_write_config_byte() warn: sleeping in atomic context
> drivers/phy/phy-core.c:404 phy_set_mode_ext() warn: sleeping in atomic context
> drivers/platform/olpc/olpc-xo175-ec.c:363 olpc_xo175_ec_complete() warn: sleeping in atomic context
> drivers/platform/olpc/olpc-xo175-ec.c:567 olpc_xo175_ec_cmd() warn: sleeping in atomic context
> drivers/scsi/arcmsr/arcmsr_hba.c:409 arcmsr_hbaA_wait_msgint_ready() warn: sleeping in atomic context
> drivers/scsi/arcmsr/arcmsr_hba.c:429 arcmsr_hbaB_wait_msgint_ready() warn: sleeping in atomic context
> drivers/scsi/arcmsr/arcmsr_hba.c:447 arcmsr_hbaC_wait_msgint_ready() warn: sleeping in atomic context
> drivers/scsi/arcmsr/arcmsr_hba.c:465 arcmsr_hbaD_wait_msgint_ready() warn: sleeping in atomic context
> drivers/scsi/arcmsr/arcmsr_hba.c:483 arcmsr_hbaE_wait_msgint_ready() warn: sleeping in atomic context
> drivers/scsi/BusLogic.c:1939 blogic_initadapter() warn: sleeping in atomic context
> drivers/scsi/BusLogic.c:254 blogic_create_addlccbs() warn: sleeping in atomic context
> drivers/scsi/elx/libefc/efc_els.c:69 efc_els_io_alloc_size() warn: sleeping in atomic context
> drivers/scsi/fcoe/fcoe_ctlr.c:441 fcoe_ctlr_link_up() warn: sleeping in atomic context
> drivers/scsi/fnic/fnic_fcs.c:500 fnic_fcoe_start_fcf_disc() warn: sleeping in atomic context
> drivers/scsi/fnic/vnic_dev.c:597 fnic_dev_stats_dump() warn: sleeping in atomic context
> drivers/scsi/libfc/fc_exch.c:606 fc_seq_set_resp() warn: sleeping in atomic context
> drivers/scsi/lpfc/lpfc_hbadisc.c:5310 lpfc_unreg_rpi() warn: sleeping in atomic context
> drivers/scsi/lpfc/lpfc_hbadisc.c:5865 lpfc_issue_clear_la() warn: sleeping in atomic context
> drivers/scsi/lpfc/lpfc_hbadisc.c:5887 lpfc_issue_reg_vpi() warn: sleeping in atomic context
> drivers/scsi/lpfc/lpfc_hbadisc.c:6563 lpfc_nlp_init() warn: sleeping in atomic context
> drivers/scsi/lpfc/lpfc_init.c:8987 lpfc_sli4_create_rpi_hdr() warn: sleeping in atomic context
> drivers/scsi/lpfc/lpfc_sli.c:19541 lpfc_sli4_post_rpi_hdr() warn: sleeping in atomic context
> drivers/scsi/mvumi.c:130 mvumi_alloc_mem_resource() warn: sleeping in atomic context
> drivers/spi/spi.c:3863 __spi_validate() warn: sleeping in atomic context
> drivers/spi/spi.c:4245 spi_sync() warn: sleeping in atomic context
> drivers/ssb/driver_pcicore.c:702 ssb_pcicore_dev_irqvecs_enable() warn: sleeping in atomic context
> drivers/ssb/pcmcia.c:106 ssb_pcmcia_switch_coreidx() warn: sleeping in atomic context
> drivers/ssb/pcmcia.c:159 ssb_pcmcia_switch_core() warn: sleeping in atomic context
> drivers/ssb/pcmcia.c:210 select_core_and_segment() warn: sleeping in atomic context
> drivers/ssb/pcmcia.c:75 ssb_pcmcia_cfg_write() warn: sleeping in atomic context
> drivers/staging/r8188eu/core/rtw_pwrctrl.c:50 ips_leave() warn: sleeping in atomic context
> drivers/staging/r8188eu/hal/usb_ops_linux.c:24 usb_read() warn: sleeping in atomic context
> drivers/staging/rtl8723bs/core/rtw_pwrctrl.c:560 LeaveAllPowerSaveMode() warn: sleeping in atomic context
> drivers/staging/rtl8723bs/core/rtw_pwrctrl.c:563 LeaveAllPowerSaveMode() warn: sleeping in atomic context
> drivers/staging/rtl8723bs/core/rtw_pwrctrl.c:582 LPS_Leave_check() warn: sleeping in atomic context
> drivers/staging/rtl8723bs/core/rtw_pwrctrl.c:80 ips_leave() warn: sleeping in atomic context
> drivers/staging/rtl8723bs/core/rtw_xmit.c:2520 rtw_sctx_wait() warn: sleeping in atomic context
> drivers/staging/rts5208/xd.c:1320 xd_build_l2p_tbl() warn: sleeping in atomic context
> drivers/staging/rts5208/xd.c:800 xd_init_l2p_tbl() warn: sleeping in atomic context
> drivers/staging/rts5208/xd.c:825 free_zone() warn: sleeping in atomic context
> drivers/staging/rts5208/xd.c:852 xd_set_unused_block() warn: sleeping in atomic context
> drivers/target/iscsi/iscsi_target.c:3435 iscsit_build_sendtargets_response() warn: sleeping in atomic context
> drivers/target/iscsi/iscsi_target_erl0.c:878 iscsit_cause_connection_reinstatement() warn: sleeping in atomic context
> drivers/target/iscsi/iscsi_target_util.c:144 iscsit_wait_for_tag() warn: sleeping in atomic context
> drivers/target/target_core_tpg.c:228 target_tpg_has_node_acl() warn: sleeping in atomic context
> drivers/tty/serial/serial_core.c:1385 uart_set_rs485_termination() warn: sleeping in atomic context
> drivers/tty/serial/serial_mctrl_gpio.c:345 mctrl_gpio_disable_ms() warn: sleeping in atomic context
> drivers/usb/cdns3/core.c:64 cdns_role_stop() warn: sleeping in atomic context
> drivers/usb/gadget/udc/bdc/bdc_core.c:38 poll_oip() warn: sleeping in atomic context
> drivers/usb/gadget/udc/core.c:740 usb_gadget_disconnect() warn: sleeping in atomic context
> drivers/usb/gadget/udc/max3420_udc.c:1308 max3420_remove() warn: sleeping in atomic context
> drivers/usb/host/max3421-hcd.c:1934 max3421_remove() warn: sleeping in atomic context
> drivers/vhost/vhost.c:1291 vhost_iotlb_miss() warn: sleeping in atomic context
> drivers/vhost/vhost.c:2091 translate_desc() warn: sleeping in atomic context
> drivers/vhost/vhost.c:2585 vhost_new_msg() warn: sleeping in atomic context
> drivers/video/fbdev/omap2/omapfb/dss/dispc-compat.c:538 dispc_mgr_enable_digit_out() warn: sleeping in atomic context
> drivers/xen/events/events_base.c:1213 bind_evtchn_to_irq_chip() warn: sleeping in atomic context
> drivers/xen/events/events_base.c:1427 unbind_from_irq() warn: sleeping in atomic context
> drivers/xen/xenbus/xenbus_client.c:290 xenbus_va_dev_error() warn: sleeping in atomic context
> drivers/xen/xenbus/xenbus_client.c:321 xenbus_dev_error() warn: sleeping in atomic context
> drivers/xen/xenbus/xenbus_client.c:342 xenbus_dev_fatal() warn: sleeping in atomic context
> drivers/xen/xenbus/xenbus_client.c:473 xenbus_alloc_evtchn() warn: sleeping in atomic context
> drivers/xen/xenbus/xenbus_client.c:494 xenbus_free_evtchn() warn: sleeping in atomic context
> drivers/xen/xen-pciback/pci_stub.c:110 pcistub_device_release() warn: sleeping in atomic context
> drivers/xen/xen-scsiback.c:1016 __scsiback_del_translation_entry() warn: sleeping in atomic context
> drivers/xen/xen-scsiback.c:276 scsiback_free_translation_entry() warn: sleeping in atomic context
> fs/afs/inode.c:132 afs_inode_init_from_status() warn: sleeping in atomic context
> fs/btrfs/subpage.c:137 btrfs_attach_subpage() warn: sleeping in atomic context
> fs/btrfs/subpage.c:169 btrfs_alloc_subpage() warn: sleeping in atomic context
> fs/configfs/dir.c:1129 configfs_depend_item() warn: sleeping in atomic context
> fs/crypto/inline_crypt.c:34 fscrypt_get_devices() warn: sleeping in atomic context
> fs/debugfs/inode.c:765 debugfs_remove() warn: sleeping in atomic context
> fs/ecryptfs/inode.c:1054 ecryptfs_getxattr_lower() warn: sleeping in atomic context
> fs/fscache/volume.c:391 fscache_free_volume() warn: sleeping in atomic context
> fs/fscache/volume.c:420 fscache_put_volume() warn: sleeping in atomic context
> fs/fs_context.c:257 alloc_fs_context() warn: sleeping in atomic context
> fs/fs_context.c:304 fs_context_for_mount() warn: sleeping in atomic context
> fs/gfs2/glock.c:1336 gfs2_glock_wait() warn: sleeping in atomic context
> fs/gfs2/glock.c:1587 gfs2_glock_nq() warn: sleeping in atomic context
> fs/gfs2/super.c:542 gfs2_make_fs_ro() warn: sleeping in atomic context
> fs/gfs2/util.c:166 signal_our_withdraw() warn: sleeping in atomic context
> fs/gfs2/util.c:356 gfs2_withdraw() warn: sleeping in atomic context
> fs/inode.c:1279 iget_locked() warn: sleeping in atomic context
> fs/inode.c:1319 iget_locked() warn: sleeping in atomic context
> fs/inode.c:1490 ilookup() warn: sleeping in atomic context
> fs/inode.c:2400 inode_nohighmem() warn: sleeping in atomic context
> fs/inode.c:262 alloc_inode() warn: sleeping in atomic context
> fs/jffs2/fs.c:275 jffs2_iget() warn: sleeping in atomic context
> fs/jffs2/fs.c:660 jffs2_gc_fetch_inode() warn: sleeping in atomic context
> fs/jffs2/malloc.c:188 jffs2_alloc_refblock() warn: sleeping in atomic context
> fs/jffs2/malloc.c:221 jffs2_prealloc_raw_node_refs() warn: sleeping in atomic context
> fs/jfs/jfs_logmgr.c:2064 lbmWrite() warn: sleeping in atomic context
> fs/jfs/jfs_logmgr.c:2116 lbmStartIO() warn: sleeping in atomic context
> fs/kernfs/dir.c:888 kernfs_find_and_get_ns() warn: sleeping in atomic context
> fs/namespace.c:1055 vfs_kern_mount() warn: sleeping in atomic context
> fs/notify/mark.c:496 fsnotify_destroy_mark() warn: sleeping in atomic context
> fs/notify/mark.c:854 fsnotify_destroy_marks() warn: sleeping in atomic context
> fs/proc/inode.c:267 proc_entry_rundown() warn: sleeping in atomic context
> fs/sysv/itree.c:104 get_branch() warn: sleeping in atomic context
> fs/ubifs/lpt.c:1462 ubifs_pnode_lookup() warn: sleeping in atomic context
> fs/xfs/xfs_buf.c:283 xfs_buf_free_pages() warn: sleeping in atomic context
> ./include/asm-generic/pgalloc.h:129 pmd_alloc_one() warn: sleeping in atomic context
> ./include/linux/buffer_head.h:341 sb_bread() warn: sleeping in atomic context
> ./include/linux/dma-resv.h:345 dma_resv_lock() warn: sleeping in atomic context
> ./include/linux/fs.h:758 inode_lock() warn: sleeping in atomic context
> ./include/linux/fsnotify_backend.h:266 fsnotify_group_lock() warn: sleeping in atomic context
> include/linux/highmem-internal.h:166 kmap() warn: sleeping in atomic context
> ./include/linux/interrupt.h:215 devm_request_irq() warn: sleeping in atomic context
> ./include/linux/interrupt.h:739 tasklet_disable() warn: sleeping in atomic context
> ./include/linux/kernfs.h:597 kernfs_find_and_get() warn: sleeping in atomic context
> ./include/linux/mmap_lock.h:117 mmap_read_lock() warn: sleeping in atomic context
> ./include/linux/mm.h:2705 pmd_ptlock_init() warn: sleeping in atomic context
> ./include/linux/mm.h:2741 pgtable_pmd_page_ctor() warn: sleeping in atomic context
> ./include/linux/percpu-rwsem.h:49 percpu_down_read() warn: sleeping in atomic context
> ./include/linux/ptr_ring.h:603 ptr_ring_resize() warn: sleeping in atomic context
> ./include/linux/ptr_ring.h:642 ptr_ring_resize_multiple() warn: sleeping in atomic context
> ./include/linux/wait_bit.h:181 wait_on_bit_lock() warn: sleeping in atomic context
> ./include/linux/wait_bit.h:73 wait_on_bit() warn: sleeping in atomic context
> ./include/linux/writeback.h:201 wait_on_inode() warn: sleeping in atomic context
> ./include/media/v4l2-ctrls.h:1103 v4l2_ctrl_s_ctrl() warn: sleeping in atomic context
> ./include/media/v4l2-ctrls.h:564 v4l2_ctrl_lock() warn: sleeping in atomic context
> ./include/net/sock.h:1725 lock_sock() warn: sleeping in atomic context
> kernel/cpu.c:310 cpus_read_lock() warn: sleeping in atomic context
> kernel/entry/common.c:159 exit_to_user_mode_loop() warn: sleeping in atomic context
> kernel/events/core.c:5148 _free_event() warn: sleeping in atomic context
> kernel/irq/manage.c:137 synchronize_irq() warn: sleeping in atomic context
> kernel/irq/manage.c:732 disable_irq() warn: sleeping in atomic context
> kernel/irq/msi.c:334 msi_lock_descs() warn: sleeping in atomic context
> kernel/irq_work.c:279 irq_work_sync() warn: sleeping in atomic context
> kernel/jump_label.c:217 static_key_enable() warn: sleeping in atomic context
> kernel/kcov.c:428 kcov_put() warn: sleeping in atomic context
> kernel/kthread.c:709 kthread_stop() warn: sleeping in atomic context
> kernel/locking/mutex.c:870 ww_mutex_lock() warn: sleeping in atomic context
> kernel/locking/rtmutex.c:1586 rt_mutex_handle_deadlock() warn: sleeping in atomic context
> kernel/locking/rwsem.c:1519 down_read() warn: sleeping in atomic context
> kernel/locking/semaphore.c:58 down() warn: sleeping in atomic context
> kernel/locking/semaphore.c:82 down_interruptible() warn: sleeping in atomic context
> kernel/notifier.c:381 blocking_notifier_call_chain() warn: sleeping in atomic context
> kernel/printk/printk.c:2607 console_lock() warn: sleeping in atomic context
> kernel/printk/printk.c:3071 console_unblank() warn: sleeping in atomic context
> kernel/rcu/tree.c:3307 kvfree_call_rcu() warn: sleeping in atomic context
> kernel/rcu/tree_nocb.h:1276 rcu_nocb_rdp_offload() warn: sleeping in atomic context
> kernel/relay.c:354 relay_create_buf_file() warn: sleeping in atomic context
> kernel/relay.c:620 relay_late_setup_files() warn: sleeping in atomic context
> kernel/relay.c:798 relay_flush() warn: sleeping in atomic context
> kernel/resource.c:1221 __request_region() warn: sleeping in atomic context
> kernel/sched/completion.c:117 wait_for_common() warn: sleeping in atomic context
> kernel/sched/completion.c:138 wait_for_completion() warn: sleeping in atomic context
> kernel/softirq.c:901 tasklet_unlock_wait() warn: sleeping in atomic context
> kernel/trace/fgraph.c:63 ftrace_graph_stop() warn: sleeping in atomic context
> kernel/trace/trace_selftest.c:769 trace_graph_entry_watchdog() warn: sleeping in atomic context
> kernel/workqueue.c:2913 __flush_workqueue() warn: sleeping in atomic context
> lib/devres.c:356 pcim_iomap_table() warn: sleeping in atomic context
> lib/kobject_uevent.c:524 kobject_uevent_env() warn: sleeping in atomic context
> lib/kunit/test.c:735 kunit_kfree() warn: sleeping in atomic context
> lib/locking-selftest.c:2236 ww_test_spin_block() warn: sleeping in atomic context
> lib/locking-selftest.c:2277 ww_test_spin_context() warn: sleeping in atomic context
> lib/locking-selftest.c:2642 MUTEX_in_HARDIRQ() warn: sleeping in atomic context
> lib/maple_tree.c:6112 mas_erase() warn: sleeping in atomic context
> lib/maple_tree.c:6221 mtree_store_range() warn: sleeping in atomic context
> lib/maple_tree.c:6330 mtree_alloc_range() warn: sleeping in atomic context
> lib/maple_tree.c:6363 mtree_alloc_rrange() warn: sleeping in atomic context
> lib/scatterlist.c:900 sg_miter_next() warn: sleeping in atomic context
> lib/test_maple_tree.c:1261 check_prev_entry() warn: sleeping in atomic context
> lib/test_maple_tree.c:1296 check_root_expand() warn: sleeping in atomic context
> mm/gup.c:2254 get_user_pages_unlocked() warn: sleeping in atomic context
> mm/gup.c:2941 internal_get_user_pages_fast() warn: sleeping in atomic context
> mm/huge_memory.c:161 get_huge_zero_page() warn: sleeping in atomic context
> mm/kmemleak.c:804 delete_object_part() warn: sleeping in atomic context
> mm/memblock.c:442 memblock_double_array() warn: sleeping in atomic context
> mm/memory.c:5823 ptlock_alloc() warn: sleeping in atomic context
> mm/mempolicy.c:2615 mpol_misplaced() warn: sleeping in atomic context
> mm/vmalloc.c:2244 vm_unmap_ram() warn: sleeping in atomic context
> mm/vmalloc.c:3279 vmalloc() warn: sleeping in atomic context
> mm/vmalloc.c:3319 vzalloc() warn: sleeping in atomic context
> net/bluetooth/l2cap_core.c:3134 l2cap_build_cmd() warn: sleeping in atomic context
> net/bluetooth/sco.c:1295 sco_conn_ready() warn: sleeping in atomic context
> net/core/dev.c:6397 napi_disable() warn: sleeping in atomic context
> net/core/sock.c:3253 sock_no_sendpage_locked() warn: sleeping in atomic context
> net/core/sock.c:3474 lock_sock_nested() warn: sleeping in atomic context
> net/core/stream.c:145 sk_stream_wait_memory() warn: sleeping in atomic context
> net/core/stream.c:75 sk_stream_wait_connect() warn: sleeping in atomic context
> net/ipv4/tcp.c:4468 tcp_alloc_md5sig_pool() warn: sleeping in atomic context
> net/ipv6/addrconf.c:2192 addrconf_leave_solict() warn: sleeping in atomic context
> net/ipv6/mcast.c:925 __ipv6_dev_mc_inc() warn: sleeping in atomic context
> net/ipv6/mcast.c:970 __ipv6_dev_mc_dec() warn: sleeping in atomic context
> net/sctp/primitive.c:198 sctp_primitive_ASCONF() warn: sleeping in atomic context
> net/sctp/socket.c:482 sctp_send_asconf() warn: sleeping in atomic context
> net/smc/smc_core.c:1306 smcr_buf_free() warn: sleeping in atomic context
> net/smc/smc_wr.c:215 smc_wr_tx_get_free_slot() warn: sleeping in atomic context
> net/socket.c:3607 kernel_sendpage_locked() warn: sleeping in atomic context
> net/sunrpc/xprt.c:1120 xprt_wait_on_pinned_rqst() warn: sleeping in atomic context
> net/sunrpc/xprt.c:1448 xprt_request_dequeue_xprt() warn: sleeping in atomic context
> net/sunrpc/xprt.c:2113 xprt_destroy() warn: sleeping in atomic context
> net/sunrpc/xprt.c:2134 xprt_destroy_kref() warn: sleeping in atomic context
> net/sunrpc/xprt.c:2158 xprt_put() warn: sleeping in atomic context
> security/apparmor/lsm.c:1663 aa_get_buffer() warn: sleeping in atomic context
> sound/core/jack.c:673 snd_jack_report() warn: sleeping in atomic context
> sound/core/pcm_native.c:1226 snd_pcm_action_group() warn: sleeping in atomic context
> sound/core/pcm_native.c:168 _snd_pcm_stream_lock_irqsave() warn: sleeping in atomic context
> sound/core/pcm_native.c:95 snd_pcm_group_lock() warn: sleeping in atomic context
> sound/isa/msnd/msnd.c:183 snd_msnd_disable_irq() warn: sleeping in atomic context

> arch/x86/mm/mmio-mod.c:318 mmiotrace_iounmap() warn: sleeping in atomic context
> block/blk-wbt.c:673 wbt_enable_default() warn: sleeping in atomic context
> block/blk-wbt.c:843 wbt_init() warn: sleeping in atomic context
> drivers/accel/habanalabs/common/context.c:112 hl_ctx_fini() warn: sleeping in atomic context
> drivers/accel/habanalabs/common/context.c:141 hl_ctx_do_release() warn: sleeping in atomic context
> drivers/accel/habanalabs/common/device.c:1071 hl_device_set_debug_mode() warn: sleeping in atomic context
> drivers/accel/habanalabs/common/memory.c:1300 unmap_device_va() warn: sleeping in atomic context
> drivers/accel/habanalabs/common/memory.c:2842 hl_vm_ctx_fini() warn: sleeping in atomic context
> drivers/base/power/sysfs.c:789 wakeup_sysfs_remove() warn: sleeping in atomic context
> drivers/gpu/drm/i915/gt/intel_gt_mcr.c:379 intel_gt_mcr_lock() warn: sleeping in atomic context
> drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c:784 intel_guc_ct_send() warn: sleeping in atomic context
> drivers/mfd/ezx-pcap.c:220 pcap_set_ts_bits() warn: sleeping in atomic context
> drivers/mfd/ezx-pcap.c:232 pcap_disable_adc() warn: sleeping in atomic context
> drivers/mfd/ezx-pcap.c:247 pcap_adc_trigger() warn: sleeping in atomic context
> drivers/mfd/ezx-pcap.c:252 pcap_adc_trigger() warn: sleeping in atomic context
> drivers/mfd/ezx-pcap.c:280 pcap_adc_irq() warn: sleeping in atomic context
> drivers/net/ethernet/chelsio/libcxgb/libcxgb_ppm.c:330 ppm_destroy() warn: sleeping in atomic context
> drivers/net/ethernet/chelsio/libcxgb/libcxgb_ppm.c:338 cxgbi_ppm_release() warn: sleeping in atomic context
> drivers/net/ethernet/mellanox/mlx5/core/cmd.c:1861 cmd_exec() warn: sleeping in atomic context
> drivers/net/phy/phy.c:1027 phy_ethtool_ksettings_set() warn: sleeping in atomic context
> drivers/net/wireless/ath/ath11k/peer.c:396 ath11k_peer_create() warn: sleeping in atomic context
> drivers/net/wwan/t7xx/t7xx_state_monitor.c:416 t7xx_fsm_append_cmd() warn: sleeping in atomic context
> drivers/pci/msi/msi.c:864 __pci_restore_msix_state() warn: sleeping in atomic context
> drivers/pcmcia/pcmcia_resource.c:168 pcmcia_access_config() warn: sleeping in atomic context
> drivers/pcmcia/pcmcia_resource.c:208 pcmcia_write_config_byte() warn: sleeping in atomic context
> drivers/phy/phy-core.c:404 phy_set_mode_ext() warn: sleeping in atomic context
> drivers/platform/olpc/olpc-xo175-ec.c:567 olpc_xo175_ec_cmd() warn: sleeping in atomic context
> drivers/scsi/lpfc/lpfc_hbadisc.c:5310 lpfc_unreg_rpi() warn: sleeping in atomic context
> drivers/scsi/lpfc/lpfc_hbadisc.c:5865 lpfc_issue_clear_la() warn: sleeping in atomic context
> drivers/scsi/lpfc/lpfc_hbadisc.c:5887 lpfc_issue_reg_vpi() warn: sleeping in atomic context
> drivers/scsi/lpfc/lpfc_hbadisc.c:6563 lpfc_nlp_init() warn: sleeping in atomic context
> drivers/scsi/lpfc/lpfc_init.c:8987 lpfc_sli4_create_rpi_hdr() warn: sleeping in atomic context
> drivers/scsi/lpfc/lpfc_sli.c:19541 lpfc_sli4_post_rpi_hdr() warn: sleeping in atomic context
> drivers/spi/spi.c:4245 spi_sync() warn: sleeping in atomic context
> drivers/staging/rtl8723bs/core/rtw_pwrctrl.c:560 LeaveAllPowerSaveMode() warn: sleeping in atomic context
> drivers/staging/rtl8723bs/core/rtw_pwrctrl.c:563 LeaveAllPowerSaveMode() warn: sleeping in atomic context
> drivers/staging/rtl8723bs/core/rtw_pwrctrl.c:80 ips_leave() warn: sleeping in atomic context
> drivers/staging/rtl8723bs/core/rtw_xmit.c:2520 rtw_sctx_wait() warn: sleeping in atomic context
> drivers/usb/cdns3/core.c:64 cdns_role_stop() warn: sleeping in atomic context
> drivers/usb/gadget/udc/core.c:740 usb_gadget_disconnect() warn: sleeping in atomic context
> drivers/usb/gadget/udc/max3420_udc.c:1308 max3420_remove() warn: sleeping in atomic context
> drivers/usb/host/max3421-hcd.c:1934 max3421_remove() warn: sleeping in atomic context
> drivers/video/fbdev/omap2/omapfb/dss/dispc-compat.c:538 dispc_mgr_enable_digit_out() warn: sleeping in atomic context
> drivers/xen/events/events_base.c:1213 bind_evtchn_to_irq_chip() warn: sleeping in atomic context
> drivers/xen/events/events_base.c:1427 unbind_from_irq() warn: sleeping in atomic context
> drivers/xen/xen-scsiback.c:1016 __scsiback_del_translation_entry() warn: sleeping in atomic context
> drivers/xen/xen-scsiback.c:276 scsiback_free_translation_entry() warn: sleeping in atomic context
> fs/debugfs/inode.c:765 debugfs_remove() warn: sleeping in atomic context
> fs/fscache/volume.c:420 fscache_put_volume() warn: sleeping in atomic context
> fs/gfs2/util.c:356 gfs2_withdraw() warn: sleeping in atomic context
> fs/notify/mark.c:496 fsnotify_destroy_mark() warn: sleeping in atomic context
> fs/notify/mark.c:854 fsnotify_destroy_marks() warn: sleeping in atomic context
> fs/proc/inode.c:267 proc_entry_rundown() warn: sleeping in atomic context
> ./include/linux/fsnotify_backend.h:266 fsnotify_group_lock() warn: sleeping in atomic context
> ./include/net/sock.h:1725 lock_sock() warn: sleeping in atomic context
> kernel/cpu.c:310 cpus_read_lock() warn: sleeping in atomic context
> kernel/irq/msi.c:334 msi_lock_descs() warn: sleeping in atomic context
> kernel/jump_label.c:217 static_key_enable() warn: sleeping in atomic context
> kernel/kthread.c:709 kthread_stop() warn: sleeping in atomic context
> kernel/locking/semaphore.c:58 down() warn: sleeping in atomic context
> kernel/relay.c:798 relay_flush() warn: sleeping in atomic context
> kernel/sched/completion.c:117 wait_for_common() warn: sleeping in atomic context
> kernel/sched/completion.c:138 wait_for_completion() warn: sleeping in atomic context
> kernel/trace/fgraph.c:63 ftrace_graph_stop() warn: sleeping in atomic context
> kernel/trace/trace_selftest.c:769 trace_graph_entry_watchdog() warn: sleeping in atomic context
> kernel/workqueue.c:2913 __flush_workqueue() warn: sleeping in atomic context
> net/core/stream.c:145 sk_stream_wait_memory() warn: sleeping in atomic context
> net/core/stream.c:75 sk_stream_wait_connect() warn: sleeping in atomic context
> net/ipv6/addrconf.c:2192 addrconf_leave_solict() warn: sleeping in atomic context
> net/ipv6/mcast.c:970 __ipv6_dev_mc_dec() warn: sleeping in atomic context
> net/sunrpc/xprt.c:2134 xprt_destroy_kref() warn: sleeping in atomic context
> net/sunrpc/xprt.c:2158 xprt_put() warn: sleeping in atomic context
> sound/core/jack.c:673 snd_jack_report() warn: sleeping in atomic context
> sound/core/pcm_native.c:1226 snd_pcm_action_group() warn: sleeping in atomic context