Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754177Ab3IJGEO (ORCPT ); Tue, 10 Sep 2013 02:04:14 -0400 Received: from www262.sakura.ne.jp ([202.181.97.72]:56156 "EHLO www262.sakura.ne.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753363Ab3IJGEM (ORCPT ); Tue, 10 Sep 2013 02:04:12 -0400 X-Nat-Received: from [202.181.97.72]:64801 [ident-empty] by smtp-proxy.isp with TPROXY id 1378792998.28020 To: khalid@gonehiking.org Cc: JBottomley@parallels.com, linux-kernel@vger.kernel.org Subject: [BusLogic] DMA-API: device driver failed to check map error From: Tetsuo Handa Message-Id: <201309101503.ECC18788.SOOVOJLFtQHMFF@I-love.SAKURA.ne.jp> X-Mailer: Winbiff [Version 2.51 PL2] X-Accept-Language: ja,en,zh Date: Tue, 10 Sep 2013 15:03:16 +0900 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Anti-Virus: Kaspersky Anti-Virus for Linux Mail Server 5.6.45.2/RELEASE, bases: 10092013 #11010063, status: clean Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 7045 Lines: 125 Hello. I got below warning on current linux.git . ---------- [ 2.612237] scsi: ***** BusLogic SCSI Driver Version 2.1.16 of 18 July 2002 ***** [ 2.613067] scsi: Copyright 1995-1998 by Leonard N. Zubkoff [ 2.630942] scsi0: Configuring BusLogic Model BT-958 PCI Wide Ultra SCSI Host Adapter [ 2.633063] scsi0: Firmware Version: 5.07B, I/O Address: 0x10C0, IRQ Channel: 17/Level [ 2.633125] scsi0: PCI Bus: 0, Device: 16, Address: 0xD8800000, Host Adapter SCSI ID: 7 [ 2.633188] scsi0: Parity Checking: Enabled, Extended Translation: Enabled [ 2.633250] scsi0: Synchronous Negotiation: Ultra, Wide Negotiation: Enabled [ 2.635721] scsi0: Disconnect/Reconnect: Enabled, Tagged Queuing: Enabled [ 2.637054] scsi0: Scatter/Gather Limit: 128 of 8192 segments, Mailboxes: 211 [ 2.637116] scsi0: Driver Queue Depth: 211, Host Adapter Queue Depth: 192 [ 2.637179] scsi0: Tagged Queue Depth: Automatic, Untagged Queue Depth: 3 [ 2.639812] scsi0: *** BusLogic BT-958 Initialized Successfully *** [ 4.635828] scsi0 : BusLogic BT-958 [ 4.641883] [sched_delayed] sched: RT throttling activated [ 4.647510] ------------[ cut here ]------------ [ 4.647573] WARNING: CPU: 1 PID: 1 at lib/dma-debug.c:937 check_unmap+0x777/0x7f0() [ 4.648851] pci 0000:00:10.0: DMA-API: device driver failed to check map error[device address=0x00000000349cddc0] [size=96 bytes] [mapped as single] [ 4.649873] Modules linked in: [ 4.649873] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 3.11.0-08716-g26b0332-dirty #8 [ 4.649873] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 08/15/2008 [ 4.649873] 000003a9 00000000 f64b7de4 c11e8096 f64b7df0 c11e80dd c1210437 f64b7e1c [ 4.649873] c10421b9 c1519440 f64b7e4c 00000001 c1518220 000003a9 c1210437 f64b7e2c [ 4.649873] 00000001 f64b7ea4 f64b7e38 c1042211 00000009 f64b7e2c c1519440 f64b7e4c [ 4.649873] Call Trace: [ 4.649873] [] __dump_stack+0x16/0x20 [ 4.649873] [] dump_stack+0x3d/0x60 [ 4.649873] [] ? check_unmap+0x777/0x7f0 [ 4.649873] [] warn_slowpath_common+0x79/0xa0 [ 4.649873] [] ? check_unmap+0x777/0x7f0 [ 4.649873] [] warn_slowpath_fmt+0x31/0x40 [ 4.649873] [] check_unmap+0x777/0x7f0 [ 4.649873] [] debug_dma_unmap_page+0x78/0x90 [ 4.649873] [] blogic_dealloc_ccb+0x83/0xb0 [ 4.649873] [] blogic_process_ccbs+0x3c7/0x3f0 [ 4.649873] [] ? blogic_scan_inbox+0x43/0xa0 [ 4.649873] [] blogic_inthandler+0x81/0x150 [ 4.649873] [] ? handle_irq_event+0x2e/0x60 [ 4.649873] [] handle_irq_event_percpu+0x38/0x120 [ 4.649873] [] ? handle_irq_event+0x2e/0x60 [ 4.649873] [] handle_irq_event+0x37/0x60 [ 4.649873] [] ? handle_level_irq+0xb0/0xb0 [ 4.649873] [] handle_fasteoi_irq+0x87/0xc0 [ 4.649873] [] ? do_IRQ+0x3c/0xb0 [ 4.649873] [] ? mark_held_locks+0xca/0x100 [ 4.649873] [] ? common_interrupt+0x31/0x36 [ 4.649873] [] ? _raw_spin_unlock_irqrestore+0x47/0x60 [ 4.649873] [] ? blogic_qcmd+0x3e/0x50 [ 4.649873] [] ? scsi_dispatch_cmd+0x174/0x1f0 [ 4.649873] [] ? trace_hardirqs_on+0xb/0x10 [ 4.649873] [] ? scsi_request_fn+0x314/0x3a0 [ 4.649873] [] ? __blk_run_queue+0x2b/0x40 [ 4.649873] [] ? blk_execute_rq_nowait+0xa2/0xd0 [ 4.649873] [] ? blk_rq_map_kern+0x130/0x130 [ 4.649873] [] ? blk_execute_rq+0x8a/0xf0 [ 4.649873] [] ? blk_rq_map_kern+0x130/0x130 [ 4.649873] [] ? blk_recount_segments+0x1e/0x40 [ 4.649873] [] ? aes_encrypt+0xe40/0x1450 [ 4.649873] [] ? blk_rq_map_kern+0x10f/0x130 [ 4.649873] [] ? scsi_execute+0xe4/0x150 [ 4.649873] [] ? scsi_execute_req_flags+0x6e/0xa0 [ 4.649873] [] ? scsi_probe_lun+0x112/0x300 [ 4.649873] [] ? scsi_probe_and_add_lun+0x10d/0x2f0 [ 4.649873] [] ? scsi_alloc_sdev+0x248/0x2b0 [ 4.649873] [] ? scsi_probe_and_add_lun+0x12d/0x2f0 [ 4.649873] [] ? anon_transport_class_unregister+0x30/0x30 [ 4.649873] [] ? scsi_alloc_target+0x1c8/0x220 [ 4.649873] [] ? __scsi_scan_target+0xa0/0xf0 [ 4.649873] [] ? scsi_scan_channel+0x5a/0x90 [ 4.649873] [] ? scsi_scan_host_selected+0xf9/0x140 [ 4.649873] [] ? do_scsi_scan_host+0x69/0x80 [ 4.649873] [] ? scsi_scan_host+0x30/0x50 [ 4.649873] [] ? blogic_init+0x32c/0x3b0 [ 4.649873] [] ? blogic_inithoststruct+0x80/0x80 [ 4.649873] [] ? do_one_initcall+0x32/0xd0 [ 4.649873] [] ? parse_one+0xc0/0xe0 [ 4.649873] [] ? parse_args+0x7a/0x170 [ 4.649873] [] ? loglevel+0x30/0x30 [ 4.649873] [] ? do_initcall_level+0x7a/0x90 [ 4.649873] [] ? loglevel+0x30/0x30 [ 4.649873] [] ? do_initcalls+0x18/0x20 [ 4.649873] [] ? do_basic_setup+0x28/0x30 [ 4.649873] [] ? kernel_init_freeable+0x5f/0xf0 [ 4.649873] [] ? kernel_init+0xb/0xe0 [ 4.649873] [] ? ret_from_kernel_thread+0x1c/0x2c [ 4.649873] [] ? rest_init+0x140/0x140 [ 4.649873] ---[ end trace d5c0cda419f9730c ]--- [ 4.649873] Mapped at: [ 4.649873] [] debug_dma_map_page+0x64/0x140 [ 4.649873] [] blogic_qcmd_lck+0x485/0x550 [ 4.649873] [] blogic_qcmd+0x32/0x50 [ 4.649873] [] scsi_dispatch_cmd+0x174/0x1f0 [ 4.649873] [] scsi_request_fn+0x314/0x3a0 [ 4.664545] scsi 0:0:0:0: Direct-Access VMware, VMware Virtual S 1.0 PQ: 0 ANSI: 2 [ 4.692725] sd 0:0:0:0: [sda] 83886080 512-byte logical blocks: (42.9 GB/40.0 GiB) [ 4.695383] sd 0:0:0:0: [sda] Write Protect is off [ 4.697271] sd 0:0:0:0: Attached scsi generic sg0 type 0 ---------- $ addr2line -e vmlinux c128b052 drivers/scsi/BusLogic.c:3231 => blogic_qcmd_lck $ addr2line -e vmlinux c128af55 include/asm-generic/pci-dma-compat.h:31 => pci_map_single The location seems to be pci_map_single() in blogic_qcmd_lck(). memcpy(ccb->cdb, cdb, cdblen); ccb->sense_datalen = SCSI_SENSE_BUFFERSIZE; ccb->sensedata = pci_map_single(adapter->pci_device, command->sense_buffer, ccb->sense_datalen, PCI_DMA_FROMDEVICE); ccb->command = command; command->scsi_done = comp_cb; Regards. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/