Messages in this thread | | | Date | Thu, 25 Feb 2021 12:09:32 +0100 | From | Thierry Reding <> | Subject | Re: next/master bisection: baseline.login on r8a77960-ulcb |
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On Wed, Feb 24, 2021 at 10:39:42PM +0100, Heiko Thiery wrote: > Hi Christoph and all, > > On 23.02.21 10:56, Guillaume Tucker wrote: > > Hi Christoph, > > > > Please see the bisection report below about a boot failure on > > r8a77960-ulcb on next-20210222. > > > > Reports aren't automatically sent to the public while we're > > trialing new bisection features on kernelci.org but this one > > looks valid. > > > > The log shows a kernel panic, more details can be found here: > > > > https://kernelci.org/test/case/id/6034bde034504edc9faddd2c/ > > > > Please let us know if you need any help to debug the issue or try > > a fix on this platform. > > I am also seeing this problem on an iMX8MQ board and can help test if you > have a fix.
This is also causing boot failures on Jetson AGX Xavier. The origin is slightly different from the above kernelci.org report, but the BUG_ON is the same:
[ 2.650447] ------------[ cut here ]------------ [ 2.650588] kernel BUG at include/linux/iommu-helper.h:23! [ 2.650729] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP [ 2.654330] Modules linked in: [ 2.657474] CPU: 2 PID: 67 Comm: kworker/2:1 Not tainted 5.11.0-next-20210225-00025-gfd15609b3a81-dirty #120 [ 2.667367] Hardware name: NVIDIA Jetson AGX Xavier Developer Kit (DT) [ 2.674096] Workqueue: events deferred_probe_work_func [ 2.679169] pstate: 40400089 (nZcv daIf +PAN -UAO -TCO BTYPE=--) [ 2.684949] pc : find_slots.isra.0+0x118/0x2f0 [ 2.689494] lr : find_slots.isra.0+0x88/0x2f0 [ 2.693696] sp : ffff800011faf950 [ 2.697281] x29: ffff800011faf950 x28: 0000000000000001 [ 2.702537] x27: 0000000000000001 x26: 0000000000000000 [ 2.708131] x25: 0000000000000001 x24: 0000000105f03148 [ 2.713556] x23: 0000000000000001 x22: ffff800011559000 [ 2.718835] x21: ffff800011559a80 x20: 00000000edc00000 [ 2.724493] x19: 0000000000000000 x18: 0000000000000020 [ 2.729770] x17: ffff0003ffd7d160 x16: 0000000000000068 [ 2.735173] x15: ffff000080b43150 x14: ffffffffffffffff [ 2.740944] x13: ffff000082b5d791 x12: 0000000000000040 [ 2.746113] x11: ffff0000a0000248 x10: 0000000000000000 [ 2.751882] x9 : 0000000000000000 x8 : ffff0003fed30000 [ 2.757139] x7 : 0000000000000000 x6 : 0000000000000000 [ 2.762818] x5 : 0000000000000000 x4 : 0000000000000000 [ 2.767984] x3 : 00000001e8303148 x2 : 0000000000008000 [ 2.773580] x1 : ffffffffffffffff x0 : 00000000001db800 [ 2.778662] Call trace: [ 2.781136] find_slots.isra.0+0x118/0x2f0 [ 2.785137] swiotlb_tbl_map_single+0x80/0x1b4 [ 2.789858] swiotlb_map+0x58/0x200 [ 2.793355] dma_direct_map_page+0x148/0x1c0 [ 2.797386] dma_map_page_attrs+0x2c/0x54 [ 2.801411] dw_pcie_host_init+0x40c/0x4c0 [ 2.805633] tegra_pcie_config_rp+0x7c/0x1f4 [ 2.810155] tegra_pcie_dw_probe+0x3d0/0x60c [ 2.814185] platform_probe+0x68/0xe0 [ 2.817688] really_probe+0xe4/0x4c0 [ 2.821362] driver_probe_device+0x58/0xc0 [ 2.825386] __device_attach_driver+0xa8/0x104 [ 2.829953] bus_for_each_drv+0x78/0xd0 [ 2.833434] __device_attach+0xdc/0x17c [ 2.837631] device_initial_probe+0x14/0x20 [ 2.841680] bus_probe_device+0x9c/0xa4 [ 2.845160] deferred_probe_work_func+0x74/0xb0 [ 2.849734] process_one_work+0x1cc/0x350 [ 2.853822] worker_thread+0x20c/0x3ac [ 2.858018] kthread+0x128/0x134 [ 2.860997] ret_from_fork+0x10/0x34 [ 2.864508] Code: ca180063 ea06007f 54fffee1 b50001e7 (d4210000) [ 2.870547] ---[ end trace e5c50bdcf12b316e ]--- [ 2.875087] note: kworker/2:1[67] exited with preempt_count 2 [ 2.880836] ------------[ cut here ]------------
I've confirmed that reverting the following commits makes the system boot again:
47cfc5be1934 ("swiotlb: Validate bounce size in the sync/unmap path") c6f50c7719e7 ("swiotlb: respect min_align_mask") e952d9a1bc20 ("swiotlb: don't modify orig_addr in swiotlb_tbl_sync_single") 567d877f9a7d ("swiotlb: refactor swiotlb_tbl_map_single")
Let me know if I can help test any fixes for this.
Thierry [unhandled content-type:application/pgp-signature] | |