linux-kernel - Re: [PATCH v2 1/2] PCI: Avoid pointless capability searches

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Message-ID: <20250304153430.GA227597@bhelgaas>
Date: Tue, 4 Mar 2025 09:34:30 -0600
From: Bjorn Helgaas <helgaas@...nel.org>
To: kernel test robot <oliver.sang@...el.com>
Cc: oe-lkp@...ts.linux.dev, lkp@...el.com, linux-pci@...r.kernel.org,
	Alex Williamson <alex.williamson@...hat.com>,
	Christian König <ckoenig.leichtzumerken@...il.com>,
	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
	linux-kernel@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>
Subject: Re: [PATCH v2 1/2] PCI: Avoid pointless capability searches

On Tue, Mar 04, 2025 at 10:12:48PM +0800, kernel test robot wrote:
> kernel test robot noticed "last_state.booting" on:
> 
> commit: c8a9382e172ac80bc96820b3ec758e35cdc05c06 ("[PATCH v2 1/2] PCI: Avoid pointless capability searches")
> url: https://github.com/intel-lab-lkp/linux/commits/Bjorn-Helgaas/PCI-Avoid-pointless-capability-searches/20250215-080525
> base: https://git.kernel.org/cgit/linux/kernel/git/pci/pci.git next
> patch link: https://lore.kernel.org/all/20250215000301.175097-2-helgaas@kernel.org/
> patch subject: [PATCH v2 1/2] PCI: Avoid pointless capability searches

This patch was dropped in next-20250224.

> in testcase: xfstests
> version: xfstests-x86_64-8467552f-1_20241215
> with following parameters:
> 
> 	disk: 4HDD
> 	fs: ext2
> 	test: generic-holetest
> 
> 
> 
> config: x86_64-rhel-9.4-func
> compiler: gcc-12
> test machine: 4 threads Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz (Skylake) with 32G memory
> 
> (please refer to attached dmesg/kmsg for entire log/backtrace)
> 
> 
> 
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <oliver.sang@...el.com>
> | Closes: https://lore.kernel.org/oe-lkp/202503042124.7627f722-lkp@intel.com
> 
> 
> The kernel config and materials to reproduce are available at:
> https://download.01.org/0day-ci/archive/20250304/202503042124.7627f722-lkp@intel.com
> 
> 
> 
> [   62.784123][  T284] LKP: waiting for network...
> [   62.784128][  T284] 
> [   63.218408][  T284] ls /sys/class/net
> [   63.218417][  T284] 
> [   63.224484][  T284] lo
> [   63.224490][  T284] 
> [   64.076175][    T1] watchdog: watchdog0: watchdog did not stop!
> [   64.157917][    T1] watchdog: watchdog0: watchdog did not stop!
> [   64.196710][    T1] sd 1:0:0:0: [sdb] Synchronizing SCSI cache
> [   64.202659][    T1] sd 0:0:0:0: [sda] Synchronizing SCSI cache
> [   64.969888][    T1] pcieport 0000:00:01.0: VC0 negotiation stuck pending
> [   64.977342][    T1] ACPI: PM: Preparing to enter system sleep state S5
> [   64.986446][    T1] kvm: exiting hardware virtualization
> reboot: Restarting system
> 
> 
> there is no more useful information, seems our test machine just reboot here.
> this is not observed on the parent commit, c71f7bbc5d794, which chosen as the
> base by bot.
> 
> * a234e07a63859 (linux-review/Bjorn-Helgaas/PCI-Avoid-pointless-capability-searches/20250215-080525) PCI: Cache offset of Resizable BAR capability
> * c8a9382e172ac PCI: Avoid pointless capability searches
> *   c71f7bbc5d794 Merge branch 'pci/endpoint'
> 
> c71f7bbc5d794984 c8a9382e172ac80bc96820b3ec7
> ---------------- ---------------------------
>        fail:runs  %reproduction    fail:runs
>            |             |             |
>            :6          100%           6:6     last_state.booting
> 
> 
> -- 
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki
>