Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752184AbcDURDJ (ORCPT ); Thu, 21 Apr 2016 13:03:09 -0400 Received: from mail-qg0-f44.google.com ([209.85.192.44]:32872 "EHLO mail-qg0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751835AbcDURDG (ORCPT ); Thu, 21 Apr 2016 13:03:06 -0400 Subject: Re: alloc failure in qla1280 probe -- need to decrease can_queue? To: Johannes Thumshirn References: <57155A93.7090604@redhat.com> <20160420141535.GF28402@c203.arch.suse.de> Cc: Michael Reed , "James E.J. Bottomley" , "Martin K. Petersen" , linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org From: Laura Abbott Message-ID: <571907C4.3030408@redhat.com> Date: Thu, 21 Apr 2016 10:03:00 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.7.1 MIME-Version: 1.0 In-Reply-To: <20160420141535.GF28402@c203.arch.suse.de> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 9374 Lines: 160 On 04/20/2016 07:15 AM, Johannes Thumshirn wrote: > [+Cc Michael Reed as get_maintainer.pl lists him as qla1280 maintainer ] > > On Mon, Apr 18, 2016 at 03:07:15PM -0700, Laura Abbott wrote: >> Hi, >> >> We received a bug report https://bugzilla.redhat.com/show_bug.cgi?id=1321033 >> of qla1280 scsi host failure on 4.4 based kernels that looks to be caused >> by page alloc failure: >> >> [ 4.804166] scsi host0: QLogic QLA1040 PCI to SCSI Host Adapter >> Firmware version: 7.65.06, Driver version 3.27.1 >> [ 4.804174] ------------[ cut here ]------------ >> [ 4.804184] WARNING: CPU: 2 PID: 305 at mm/page_alloc.c:2989 __alloc_pages_nodemask+0xae8/0xbc0() >> [ 4.804186] Modules linked in: amdkfd amd_iommu_v2 radeon i2c_algo_bit drm_kms_helper ttm drm megaraid_sas serio_raw 8021q garp bnx2 stp llc mrp sunhme qla1280(+) fjes >> [ 4.804208] CPU: 2 PID: 305 Comm: systemd-udevd Not tainted 4.4.6-201.fc22.x86_64 #1 >> [ 4.804210] Hardware name: Google Enterprise Search Appliance/0DT021, BIOS 1.1.2 08/14/2006 >> [ 4.804212] 0000000000000286 000000002f01064c ffff88042985b710 ffffffff813b542e >> [ 4.804216] 0000000000000000 ffffffff81a75024 ffff88042985b748 ffffffff810a40f2 >> [ 4.804220] 0000000000000000 0000000000000000 000000000000000b 0000000000000000 >> [ 4.804223] Call Trace: >> [ 4.804231] [] dump_stack+0x63/0x85 >> [ 4.804236] [] warn_slowpath_common+0x82/0xc0 >> [ 4.804239] [] warn_slowpath_null+0x1a/0x20 >> [ 4.804242] [] __alloc_pages_nodemask+0xae8/0xbc0 >> [ 4.804247] [] ? _raw_spin_unlock_irqrestore+0xe/0x10 >> [ 4.804251] [] ? irq_work_queue+0x8e/0xa0 >> [ 4.804256] [] ? console_unlock+0x20a/0x540 >> [ 4.804262] [] alloc_pages_current+0x8c/0x110 >> [ 4.804265] [] alloc_kmem_pages+0x19/0x90 >> [ 4.804268] [] kmalloc_order_trace+0x2e/0xe0 >> [ 4.804272] [] __kmalloc+0x232/0x260 >> [ 4.804277] [] init_tag_map+0x3d/0xc0 >> [ 4.804290] [] __blk_queue_init_tags+0x45/0x80 >> [ 4.804293] [] blk_init_tags+0x14/0x20 >> [ 4.804298] [] scsi_add_host_with_dma+0x80/0x300 >> [ 4.804305] [] qla1280_probe_one+0x683/0x9ef [qla1280] >> [ 4.804309] [] local_pci_probe+0x45/0xa0 >> [ 4.804312] [] pci_device_probe+0xfd/0x140 >> [ 4.804316] [] driver_probe_device+0x222/0x490 >> [ 4.804319] [] __driver_attach+0x84/0x90 >> [ 4.804321] [] ? driver_probe_device+0x490/0x490 >> [ 4.804324] [] bus_for_each_dev+0x6c/0xc0 >> [ 4.804326] [] driver_attach+0x1e/0x20 >> [ 4.804328] [] bus_add_driver+0x1eb/0x280 >> [ 4.804331] [] ? 0xffffffffa0015000 >> [ 4.804333] [] driver_register+0x60/0xe0 >> [ 4.804336] [] __pci_register_driver+0x4c/0x50 >> [ 4.804339] [] qla1280_init+0x1ce/0x1000 [qla1280] >> [ 4.804341] [] ? 0xffffffffa0015000 >> [ 4.804345] [] do_one_initcall+0xb3/0x200 >> [ 4.804348] [] ? kmem_cache_alloc_trace+0x196/0x210 >> [ 4.804352] [] ? do_init_module+0x27/0x1cb >> [ 4.804354] [] do_init_module+0x5f/0x1cb >> [ 4.804358] [] load_module+0x2040/0x2680 >> [ 4.804360] [] ? __symbol_put+0x60/0x60 >> [ 4.804363] [] SYSC_init_module+0x149/0x190 >> [ 4.804366] [] SyS_init_module+0xe/0x10 >> [ 4.804369] [] entry_SYSCALL_64_fastpath+0x12/0x71 >> [ 4.804371] ---[ end trace 0ea3b625f86705f7 ]--- >> [ 4.804581] qla1280: probe of 0000:11:04.0 failed with error -12 >> >> This looks very similar to http://www.spinics.net/lists/linux-usb/msg136998.html >> which was fixed by 55ff8cfbc4e1 ("USB: uas: Reduce can_queue to MAX_CMNDS"). >> Does a similar fix need to be applied here? >> >> Thanks, >> Laura > > Can you (or better the reporter) try below? Unfortunately I don't have a > qla1280 setup here, so I couldn't test it myself. > Reporter indicated that the patch worked, host is now showing up. > Byte, > Johannes > > From f95e82e7e5f675c9869ea1da78021aa6abc7972b Mon Sep 17 00:00:00 2001 > From: Johannes Thumshirn > Date: Wed, 20 Apr 2016 16:07:37 +0200 > Subject: [PATCH] qla1280: Reduce can_queue to 32 > > The qla1280 driver sets the scsi_host_template's can_queue field to 0xfffff > which results in an allocation failure when allocating the block layer tags > for the driver's queues like the one shown below: > > [ 4.804166] scsi host0: QLogic QLA1040 PCI to SCSI Host Adapter Firmware version: 7.65.06, Driver version 3.27.1 > [ 4.804174] ------------[ cut here ]------------ > [ 4.804184] WARNING: CPU: 2 PID: 305 at mm/page_alloc.c:2989 alloc_pages_nodemask+0xae8/0xbc0() > [ 4.804186] Modules linked in: amdkfd amd_iommu_v2 radeon i2c_algo_bit m_kms_helper ttm drm megaraid_sas serio_raw 8021q garp bnx2 stp llc mrp nhme qla1280(+) fjes > [ 4.804208] CPU: 2 PID: 305 Comm: systemd-udevd Not tainted 4.6-201.fc22.x86_64 #1 > [ 4.804210] Hardware name: Google Enterprise Search Appliance/0DT021, OS 1.1.2 08/14/2006 > [ 4.804212] 0000000000000286 000000002f01064c ffff88042985b710 ffffff813b542e > [ 4.804216] 0000000000000000 ffffffff81a75024 ffff88042985b748 ffffff810a40f2 > [ 4.804220] 0000000000000000 0000000000000000 000000000000000b 00000000000000 > [ 4.804223] Call Trace: > [ 4.804231] [] dump_stack+0x63/0x85 > [ 4.804236] [] warn_slowpath_common+0x82/0xc0 > [ 4.804239] [] warn_slowpath_null+0x1a/0x20 > [ 4.804242] [] __alloc_pages_nodemask+0xae8/0xbc0 > [ 4.804247] [] ? _raw_spin_unlock_irqrestore+0xe/0x10 > [ 4.804251] [] ? irq_work_queue+0x8e/0xa0 > [ 4.804256] [] ? console_unlock+0x20a/0x540 > [ 4.804262] [] alloc_pages_current+0x8c/0x110 > [ 4.804265] [] alloc_kmem_pages+0x19/0x90 > [ 4.804268] [] kmalloc_order_trace+0x2e/0xe0 > [ 4.804272] [] __kmalloc+0x232/0x260 > [ 4.804277] [] init_tag_map+0x3d/0xc0 > [ 4.804290] [] __blk_queue_init_tags+0x45/0x80 > [ 4.804293] [] blk_init_tags+0x14/0x20 > [ 4.804298] [] scsi_add_host_with_dma+0x80/0x300 > [ 4.804305] [] qla1280_probe_one+0x683/0x9ef [qla1280] > [ 4.804309] [] local_pci_probe+0x45/0xa0 > [ 4.804312] [] pci_device_probe+0xfd/0x140 > [ 4.804316] [] driver_probe_device+0x222/0x490 > [ 4.804319] [] __driver_attach+0x84/0x90 > [ 4.804321] [] ? driver_probe_device+0x490/0x490 > [ 4.804324] [] bus_for_each_dev+0x6c/0xc0 > [ 4.804326] [] driver_attach+0x1e/0x20 > [ 4.804328] [] bus_add_driver+0x1eb/0x280 > [ 4.804331] [] ? 0xffffffffa0015000 > [ 4.804333] [] driver_register+0x60/0xe0 > [ 4.804336] [] __pci_register_driver+0x4c/0x50 > [ 4.804339] [] qla1280_init+0x1ce/0x1000 [qla1280] > [ 4.804341] [] ? 0xffffffffa0015000 > [ 4.804345] [] do_one_initcall+0xb3/0x200 > [ 4.804348] [] ? kmem_cache_alloc_trace+0x196/0x210 > [ 4.804352] [] ? do_init_module+0x27/0x1cb > [ 4.804354] [] do_init_module+0x5f/0x1cb > [ 4.804358] [] load_module+0x2040/0x2680 > [ 4.804360] [] ? __symbol_put+0x60/0x60 > [ 4.804363] [] SYSC_init_module+0x149/0x190 > [ 4.804366] [] SyS_init_module+0xe/0x10 > [ 4.804369] [] entry_SYSCALL_64_fastpath+0x12/0x71 > [ 4.804371] ---[ end trace 0ea3b625f86705f7 ]--- > [ 4.804581] qla1280: probe of 0000:11:04.0 failed with error -12 > > In qla1280_set_defaults() the maximum queue depth is > set to 32 so adopt the scsi_host_template to it as well. > > Signed-off-by: Johannes Thumshirn > --- > drivers/scsi/qla1280.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c > index 5d0ec42..6bd748e 100644 > --- a/drivers/scsi/qla1280.c > +++ b/drivers/scsi/qla1280.c > @@ -4214,7 +4214,7 @@ static struct scsi_host_template qla1280_driver_template = { > .eh_bus_reset_handler = qla1280_eh_bus_reset, > .eh_host_reset_handler = qla1280_eh_adapter_reset, > .bios_param = qla1280_biosparam, > - .can_queue = 0xfffff, > + .can_queue = 32, > .this_id = -1, > .sg_tablesize = SG_ALL, > .use_clustering = ENABLE_CLUSTERING, >