On 30/01/16 08:05, Nicholas A. Bellinger wrote: > From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx> > > Cc: Juergen Gross <jgross@xxxxxxxx> > Cc: Hannes Reinecke <hare@xxxxxxx> > Cc: David Vrabel <david.vrabel@xxxxxxxxxx> > Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx> Sorry, with your patches applied xen-scsiback isn't working any more. I've tried multiple times with and without your patches. Without the patches everything is fine, while with the patches applied I get the warnings shown in the attached log. I just passed through a DVD drive and did "eject" in the domain. Juergen
[10984.266570] ------------[ cut here ]------------ [10984.266597] WARNING: CPU: 0 PID: 0 at drivers/target/target_core_transport.c:717 target_complete_cmd+0x1cb/0x200 [target_core_mod]() [10984.266601] Modules linked in: xt_physdev br_netfilter iptable_filter ip_tables x_tables loop target_core_pscsi target_core_file target_core_iblock iscsi_target_mod tcm_loop xen_scsiback bridge stp llc iscsi_ibft iscsi_boot_sysfs tun arc4 iwldvm mac80211 joydev iwlwifi uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core snd_hda_codec_realtek cfg80211 snd_hda_codec_hdmi snd_hda_codec_generic videodev intel_rapl x86_pkg_temp_thermal e1000e intel_powerclamp snd_hda_intel media snd_hda_codec coretemp crct10dif_pclmul iTCO_wdt snd_hda_core crc32_pclmul iTCO_vendor_support dell_laptop crc32c_intel sdhci_pci rfkill ghash_clmulni_intel ptp snd_hwdep hmac i2c_hid drbg snd_pcm ansi_cprng hid dell_wmi ppdev snd_timer sparse_keymap dcdbas dell_smm_hwmon parport_pc parport snd i2c_designware_platform [10984.266670] i2c_designware_core thermal tpm_tis xhci_pci tpm evdev mei_me xhci_hcd aesni_intel mei aes_x86_64 psmouse shpchp lrw lpc_ich gf128mul i2c_i801 soundcore mfd_core pps_core ac glue_helper ablk_helper battery serio_raw pcspkr cryptd wmi target_core_mod xenfs xen_privcmd configfs dm_mod ext4 crc16 mbcache jbd2 sd_mod sr_mod cdrom i915 ehci_pci ehci_hcd i2c_algo_bit drm_kms_helper ahci libahci libata usbcore usb_common drm sdhci_acpi video sdhci mmc_core button xen_acpi_processor xen_pciback xen_netback xen_blkback xen_gntalloc xen_gntdev xen_evtchn sg scsi_mod autofs4 [10984.266735] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 4.5.0-rc1-pv+ #1 [10984.266739] Hardware name: Dell Inc. Latitude E6440/0159N7, BIOS A07 06/26/2014 [10984.266742] ffffffffa0422408 ffffffff812e8bb4 0000000000000000 ffffffff8106e95c [10984.266748] ffff8800d2e007d0 ffff8800d2e008e0 0000000000000001 ffffffffa08c3150 [10984.266753] 0000000000000000 ffffffffa04091ab ffff8800da13ea20 ffff88000294f7c0 [10984.266758] Call Trace: [10984.266761] <IRQ> [<ffffffff812e8bb4>] ? dump_stack+0x40/0x5c [10984.266776] [<ffffffff8106e95c>] ? warn_slowpath_common+0x7c/0xb0 [10984.266784] [<ffffffffa08c3150>] ? pscsi_bi_endio+0x10/0x10 [target_core_pscsi] [10984.266794] [<ffffffffa04091ab>] ? target_complete_cmd+0x1cb/0x200 [target_core_mod] [10984.266799] [<ffffffffa08c30f5>] ? pscsi_req_done+0x85/0xd0 [target_core_pscsi] [10984.266811] [<ffffffffa00125c7>] ? scsi_end_request+0xf7/0x1a0 [scsi_mod] [10984.266820] [<ffffffffa001481a>] ? scsi_io_completion+0xfa/0x5f0 [scsi_mod] [10984.266830] [<ffffffff812c4833>] ? blk_done_softirq+0x73/0x90 [10984.266836] [<ffffffff81072b5c>] ? __do_softirq+0xcc/0x240 [10984.266842] [<ffffffff81072eb6>] ? irq_exit+0x86/0x90 [10984.266852] [<ffffffff8139c8bc>] ? xen_evtchn_do_upcall+0x2c/0x40 [10984.266862] [<ffffffff8158772e>] ? xen_do_hypervisor_callback+0x1e/0x40 [10984.266864] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20 [10984.266874] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20 [10984.266882] [<ffffffff8100afdc>] ? xen_safe_halt+0xc/0x20 [10984.266891] [<ffffffff8101edd3>] ? default_idle+0x13/0x90 [10984.266898] [<ffffffff810a92fd>] ? cpu_startup_entry+0x25d/0x2f0 [10984.266903] [<ffffffff8190a06a>] ? start_kernel+0x471/0x47c [10984.266907] [<ffffffff81909a00>] ? set_init_arg+0x50/0x50 [10984.266912] [<ffffffff8190c324>] ? xen_start_kernel+0x522/0x52c [10984.266916] ---[ end trace 07ad307d0cb62aa4 ]--- [10984.266940] ------------[ cut here ]------------ [10984.266953] WARNING: CPU: 0 PID: 2448 at drivers/target/target_core_transport.c:2120 target_complete_ok_work+0x291/0x2e0 [target_core_mod]() [10984.266955] Modules linked in: xt_physdev br_netfilter iptable_filter ip_tables x_tables loop target_core_pscsi target_core_file target_core_iblock iscsi_target_mod tcm_loop xen_scsiback bridge stp llc iscsi_ibft iscsi_boot_sysfs tun arc4 iwldvm mac80211 joydev iwlwifi uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core snd_hda_codec_realtek cfg80211 snd_hda_codec_hdmi snd_hda_codec_generic videodev intel_rapl x86_pkg_temp_thermal e1000e intel_powerclamp snd_hda_intel media snd_hda_codec coretemp crct10dif_pclmul iTCO_wdt snd_hda_core crc32_pclmul iTCO_vendor_support dell_laptop crc32c_intel sdhci_pci rfkill ghash_clmulni_intel ptp snd_hwdep hmac i2c_hid drbg snd_pcm ansi_cprng hid dell_wmi ppdev snd_timer sparse_keymap dcdbas dell_smm_hwmon parport_pc parport snd i2c_designware_platform [10984.267013] i2c_designware_core thermal tpm_tis xhci_pci tpm evdev mei_me xhci_hcd aesni_intel mei aes_x86_64 psmouse shpchp lrw lpc_ich gf128mul i2c_i801 soundcore mfd_core pps_core ac glue_helper ablk_helper battery serio_raw pcspkr cryptd wmi target_core_mod xenfs xen_privcmd configfs dm_mod ext4 crc16 mbcache jbd2 sd_mod sr_mod cdrom i915 ehci_pci ehci_hcd i2c_algo_bit drm_kms_helper ahci libahci libata usbcore usb_common drm sdhci_acpi video sdhci mmc_core button xen_acpi_processor xen_pciback xen_netback xen_blkback xen_gntalloc xen_gntdev xen_evtchn sg scsi_mod autofs4 [10984.267067] CPU: 0 PID: 2448 Comm: kworker/0:0 Tainted: G W 4.5.0-rc1-pv+ #1 [10984.267070] Hardware name: Dell Inc. Latitude E6440/0159N7, BIOS A07 06/26/2014 [10984.267081] Workqueue: target_completion target_complete_ok_work [target_core_mod] [10984.267084] ffffffffa0422408 ffffffff812e8bb4 0000000000000000 ffffffff8106e95c [10984.267089] ffff8800d2e00908 ffff8800d2e007d0 0000000000000903 ffffe8ffffc0af00 [10984.267094] 0000000000000000 ffffffffa040c831 0000000000000000 ffff8800d2e00908 [10984.267099] Call Trace: [10984.267103] [<ffffffff812e8bb4>] ? dump_stack+0x40/0x5c [10984.267108] [<ffffffff8106e95c>] ? warn_slowpath_common+0x7c/0xb0 [10984.267117] [<ffffffffa040c831>] ? target_complete_ok_work+0x291/0x2e0 [target_core_mod] [10984.267124] [<ffffffff81084709>] ? process_one_work+0x149/0x3b0 [10984.267128] [<ffffffff81084dcd>] ? worker_thread+0x11d/0x4a0 [10984.267133] [<ffffffff81084cb0>] ? rescuer_thread+0x340/0x340 [10984.267140] [<ffffffff8108a068>] ? kthread+0xb8/0xd0 [10984.267146] [<ffffffff81089fb0>] ? kthread_park+0x50/0x50 [10984.267152] [<ffffffff81585d4f>] ? ret_from_fork+0x3f/0x70 [10984.267158] [<ffffffff81089fb0>] ? kthread_park+0x50/0x50 [10984.267161] ---[ end trace 07ad307d0cb62aa5 ]---
