i wrote a similar bugreport years ago and also refered on the open-vm-tools mailing-list there and it looked like it was fixed, however, in current debug builds there are still errors/warnings which should *not* exist in a major hardware driver Nov 28 19:42:15 rawhide kernel: VMware PVSCSI driver - version 1.0.5.0-k Nov 28 19:42:15 rawhide kernel: vmw_pvscsi: using 64bit dma Nov 28 19:42:15 rawhide kernel: vmw_pvscsi: max_id: 16 Nov 28 19:42:15 rawhide kernel: vmw_pvscsi: setting ring_pages to 8 Nov 28 19:42:15 rawhide kernel: vmw_pvscsi: using MSI-X Nov 28 19:42:15 rawhide kernel: vmw_pvscsi: device does not support req_threshold Nov 28 19:42:15 rawhide kernel: scsi host2: VMware PVSCSI storage adapter rev 2, req/cmp/msg rings: 8/8/1 pages, cmd_per_lun=254 Nov 28 19:42:15 rawhide kernel: vmw_pvscsi 0000:13:00.0: VMware PVSCSI rev 2 host #2 Nov 28 19:42:15 rawhide kernel: ------------[ cut here ]------------ Nov 28 19:42:15 rawhide kernel: WARNING: CPU: 0 PID: 166 at lib/dma-debug.c:1156 check_unmap+0x4bc/0x960() Nov 28 19:42:15 rawhide kernel: vmw_pvscsi 0000:13:00.0: DMA-API: device driver failed to check map error[device address=0x000000001af9c180] [size=96 bytes] [mapped as single] Nov 28 19:42:15 rawhide kernel: Modules linked in: Nov 28 19:42:15 rawhide kernel: vmw_pvscsi Nov 28 19:42:15 rawhide kernel: CPU: 0 PID: 166 Comm: systemd-udevd Not tainted 4.4.0-0.rc2.git2.1.fc24.x86_64 #1 Nov 28 19:42:15 rawhide kernel: Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/02/2015 Nov 28 19:42:15 rawhide kernel: 0000000000000000 00000000677a9c89 ffff88001fa03be0 ffffffff81424e89 Nov 28 19:42:15 rawhide kernel: ffff88001fa03c28 ffff88001fa03c18 ffffffff810ab4b2 ffff88001d7a2bf0 Nov 28 19:42:15 rawhide kernel: ffff88001d234180 ffffffff834372d0 0000000000000086 ffffffff81ce43f9 Nov 28 19:42:15 rawhide kernel: Call Trace: Nov 28 19:42:15 rawhide kernel: <IRQ> [<ffffffff81424e89>] dump_stack+0x4b/0x72 Nov 28 19:42:15 rawhide kernel: [<ffffffff810ab4b2>] warn_slowpath_common+0x82/0xc0 Nov 28 19:42:15 rawhide kernel: [<ffffffff810ab54c>] warn_slowpath_fmt+0x5c/0x80 Nov 28 19:42:15 rawhide kernel: [<ffffffff81457dfc>] check_unmap+0x4bc/0x960 Nov 28 19:42:15 rawhide kernel: [<ffffffff81458319>] debug_dma_unmap_page+0x79/0xa0 Nov 28 19:42:15 rawhide kernel: [<ffffffffa000064a>] pvscsi_unmap_buffers.isra.12+0x11a/0x1d0 [vmw_pvscsi] Nov 28 19:42:15 rawhide kernel: [<ffffffffa00007c5>] pvscsi_process_completion_ring+0xc5/0x280 [vmw_pvscsi] Nov 28 19:42:15 rawhide kernel: [<ffffffffa0000bd3>] ? pvscsi_isr+0x23/0xa0 [vmw_pvscsi] Nov 28 19:42:15 rawhide kernel: [<ffffffffa0000bde>] pvscsi_isr+0x2e/0xa0 [vmw_pvscsi] Nov 28 19:42:15 rawhide kernel: [<ffffffff8111cd21>] handle_irq_event_percpu+0x41/0x300 Nov 28 19:42:15 rawhide kernel: [<ffffffff8111d019>] handle_irq_event+0x39/0x60 Nov 28 19:42:15 rawhide kernel: [<ffffffff81120564>] handle_edge_irq+0x74/0x130 Nov 28 19:42:15 rawhide kernel: [<ffffffff8101f193>] handle_irq+0x73/0x120 Nov 28 19:42:15 rawhide kernel: [<ffffffff8112b8a6>] ? rcu_irq_enter+0x86/0x90 Nov 28 19:42:15 rawhide kernel: [<ffffffff81876301>] do_IRQ+0x61/0x120 Nov 28 19:42:15 rawhide kernel: [<ffffffff818740cc>] common_interrupt+0x8c/0x8c Nov 28 19:42:15 rawhide kernel: <EOI> Nov 28 19:42:15 rawhide kernel: ---[ end trace 0ba887b229be0e75 ]--- Nov 28 19:42:15 rawhide kernel: Mapped at: Nov 28 19:42:15 rawhide kernel: [<ffffffff8145686b>] debug_dma_map_page+0x8b/0x150 Nov 28 19:42:15 rawhide kernel: [<ffffffffa0001291>] pvscsi_queue+0x1e1/0x7e0 [vmw_pvscsi] Nov 28 19:42:15 rawhide kernel: [<ffffffff815bf18c>] scsi_dispatch_cmd+0x10c/0x360 Nov 28 19:42:15 rawhide kernel: [<ffffffff815c1ff9>] scsi_request_fn+0x479/0x620 Nov 28 19:42:15 rawhide kernel: [<ffffffff813eca33>] __blk_run_queue+0x33/0x40 Nov 28 19:42:15 rawhide kernel: scsi 2:0:0:0: Direct-Access VMware, VMware Virtual S 1.0 PQ: 0 ANSI: 2 Nov 28 19:42:15 rawhide kernel: scsi 2:0:1:0: Direct-Access VMware, VMware Virtual S 1.0 PQ: 0 ANSI: 2
*** This bug has been marked as a duplicate of bug 926917 ***