From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: xen-devel@lists.xensource.com
Subject: Re: [PATCH PV_OPS PCIFRONT]
Date: Fri, 6 Nov 2009 17:11:13 -0500 [thread overview]
Message-ID: <20091106221113.GA14124@phenom.dumpdata.com> (raw)
In-Reply-To: <20091106215035.GA22320@phenom.dumpdata.com>
> > What does that warning mean?
>
> Something about slowpath. Didn't dive any deeper in this. I think it complains
> about the workqueue taking too long to do its job.
Here is another one I get (it is unrelated to Xen - a general USB floppy issue):
scsi 9:0:0:0: Direct-Access TEAC FD-05PUB 3200 PQ: 0 ANSI: 0 CCS
sd 9:0:0:0: Attached scsi generic sg4 type 0
sd 8:0:0:0: [sdc] Assuming drive cache: write through
sdc: sdc1 sdc2 sdc3
------------[ cut here ]------------
WARNING: at /mnt/tmp/fc11/xen/lib/dma-debug.c:860 check_for_stack+0xfa/0x15e()
Hardware name: To Be Filled By O.E.M.
ohci_hcd 0000:00:12.1: DMA-API: device driver maps memory fromstack [addr=ffff8801d4129de8]
Modules linked in: dvb_core tuner_simple tuner_types tda9887 tda8290 snd_hda_codec_atihdmi snd_hda_codec_realtek radeon tuner snd_hda_intel snd_usb_audio snd_hda_codec cx8800 snd_usb_lib cx8802 cx88xx snd_rawmidi snd_pcm snd_seq_device ttm snd_hwdep pwc snd_timer ir_common snd drm v4l2_common videodev ata_generic tveeprom firewire_ohci pl2303 btcx_risc r8169 usb_storage firewire_core i2c_piix4 soundcore pata_acpi usbserial v4l1_compat videobuf_dma_sg tg3 v4l2_compat_ioctl32 floppy videobuf_core i2c_algo_bit mii pata_atiixp snd_page_alloc i2c_core crc_itu_t shpchp serio_raw wmi pcspkr [last unloaded: scsi_wait_scan]
Pid: 999, comm: usb-storage Tainted: G W 2.6.31.4 #1
Call Trace:
[<ffffffff8107ed59>] warn_slowpath_common+0xc9/0x10c
[<ffffffff8107ee49>] warn_slowpath_fmt+0x60/0x84
[<ffffffff81010dff>] ? xen_restore_fl_direct_end+0x0/0x1
[<ffffffff8133b473>] check_for_stack+0xfa/0x15e
[<ffffffff8133c7a6>] debug_dma_map_page+0x111/0x163
[<ffffffff814ecc21>] dma_map_single_attrs.clone.2+0xfa/0x128
[<ffffffff814ece0e>] usb_hcd_submit_urb+0x1bf/0xd84
[<ffffffff81012463>] ? __xen_spin_lock+0x11f/0x150
[<ffffffff8101200c>] ? xen_spin_unlock+0x27/0x7d
[<ffffffff814ee3c1>] usb_submit_urb+0x463/0x487
[<ffffffffa00d8407>] usb_stor_msg_common+0x105/0x1e1 [usb_storage]
[<ffffffffa00d94d3>] usb_stor_ctrl_transfer+0xb5/0x100 [usb_storage]
[<ffffffffa00d97f8>] usb_stor_CB_transport+0x59/0x2cd [usb_storage]
[<ffffffffa00d8946>] usb_stor_invoke_transport+0x1fe/0x494 [usb_storage]
[<ffffffffa00d804e>] usb_stor_ufi_command+0x8f/0xac [usb_storage]
[<ffffffffa00dafbc>] usb_stor_control_thread+0x1e9/0x31f [usb_storage]
[<ffffffff81010dff>] ? xen_restore_fl_direct_end+0x0/0x1
[<ffffffffa00dadd3>] ? usb_stor_control_thread+0x0/0x31f [usb_storage]
[<ffffffff810a4731>] kthread+0xbe/0xcd
[<ffffffff81018aaa>] child_rip+0xa/0x20
[<ffffffff81017c67>] ? int_ret_from_sys_call+0x7/0x1b
[<ffffffff8101841d>] ? retint_restore_args+0x5/0x6
[<ffffffff81018aa0>] ? child_rip+0x0/0x20
---[ end trace a7919e7f17c0a727 ]---
sd 8:0:0:0: [sdc] Assuming drive cache: write through
sd 8:0:0:0: [sdc] Attached SCSI removable disk
usb 1-5:1.0: uevent
usb 1-5: uevent
sd 9:0:0:0: [sdd] 2880 512-byte logical blocks: (1.47 MB/1.40 MiB)
ohci_hcd 0000:00:12.1: urb ffff8801d89f0e40 path 3 ep1in 93120000 cc 9 --> status -121
sd 9:0:0:0: [sdd] Write Protect is off
sd 9:0:0:0: [sdd] Mode Sense: 00 46 94 00
sd 9:0:0:0: [sdd] Assuming drive cache: write through
ohci_hcd 0000:00:12.1: urb ffff8801d2dd6a80 path 3 ep1in 92120000 cc 9 --> status -121
next prev parent reply other threads:[~2009-11-06 22:11 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-05 21:33 [PATCH PV_OPS PCIFRONT] Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 01/31] [xen-core] Provide a variant of xen_poll_irq with timeout Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 02/31] Enable Xen-SWIOTLB if running in [non-]privileged and disable the Xen-IOMMU if an IOMMU is detected Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 03/31] Initial copy from linux-2.6.18.hg of the pcifront driver Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 04/31] Fix include header name change Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 05/31] Fix compile warning: ignoring return value of 'pci_bus_add_device', declared with attribute warn_unused_result Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 06/31] Fix compile warning: passing argument 2 of 'pci_walk_bus' from incompatible pointer type Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 07/31] Fix compile error. The bind_to_irq_handler has different arguments Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 08/31] Fix compile error: implicit declaration of function 'virt_to_mfn' Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 09/31] Fix compile error: implicit declaration of function 'clear_evtchn' Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 10/31] Fix compile error: implicit declaration of function 'gnttab_end_foreign_access' Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 11/31] Fix compile error: too few arguments to " Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 12/31] Remove function declerations (CONFIG_PCI_DOMAIN) that exist in recent kernels Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 13/31] Fix uage of INIT_WORK Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 14/31] Add proper check to see if running under Xen Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 15/31] Improper assumption that event channel == IRQ number Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 16/31] Replace HYPERVISOR_poll with 'xen_poll_irq_timout' function Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 17/31] Coalesce pci.c functions in xenbus.c Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 18/31] Coalesce xen/pcifront.h in drivers/xen/pcifront/pcifront.h Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 19/31] Remove ia64 from pcifront.c support Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 20/31] Remove unused pci_bus_sem extern, as we don't use it Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 21/31] Coalesce pcifront.h in xenbus.c Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 22/31] Coalesce pci_op.c " Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 23/31] Remove unnecessary function declerations Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 24/31] Rename the drivers/xen/pcifront/* driver to drivers/pci/xen-pcifront.c Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 25/31] Change the boot-order of initialising the PCI frontend Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 26/31] Fix warnings/errors reported by checkpatch.pl on xen-pcifront.c Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 27/31] Find an unbound irq number in reverse order (high to low) Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 28/31] For non-privileged domains, implement a pcibios_enable_irq (xen_pcifront_enable_irq) function Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 29/31] xen_destroy_irq + xen_allocate_pirq in PV non-priv mode should not make certain Xen-HYPERCALLs Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 30/31] Add pci_frontend_[enable|disable]_[msi|msix] function decleration and EXPORT_SYMBOL_GPL Konrad Rzeszutek Wilk
2009-11-05 21:33 ` [PATCH 31/31] To enable MSI devices in a non-privileged PV domain use pci_frontend_enable_msi Konrad Rzeszutek Wilk
2009-11-06 21:38 ` [PATCH 29/31] xen_destroy_irq + xen_allocate_pirq in PV non-priv mode should not make certain Xen-HYPERCALLs Jeremy Fitzhardinge
2009-11-05 22:04 ` [PATCH PV_OPS PCIFRONT] Konrad Rzeszutek Wilk
2009-11-06 21:40 ` Jeremy Fitzhardinge
2009-11-06 21:50 ` Konrad Rzeszutek Wilk
2009-11-06 22:11 ` Konrad Rzeszutek Wilk [this message]
2009-11-06 22:33 ` Jeremy Fitzhardinge
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