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器件型号：AM69 主题中讨论的其他器件：TDA4VM、、
工具与软件：
您好！
我们将使用 SDK 10.00.08内核 ti-linux-6.6.6.y、并且对于此版本、在启动期间、如果连接到 NVMe PCIe 设备、我们会出现内核严重错误。
使用旧版 SDK 09.02.00.010内核 ti-linux-6.1.y 可以正常运行。
如果我们插入不同的电路板(PCIe 转 USB 3.0适配器)、则同一个 PCIe 插槽可以正常工作。
我检查了内核配置和设备树、它们看起来是正确的。
内核紧急情况由 NVME_PCI_ENABLE 函数在以下指令中触发：
if (readl(dev->bar + NVME_REG_CSTS) == -1) {
下面是内核恐慌的节选:
[ 5.998134] j721e-pcie 2900000.pcie: PCI host bridge to bus 0000:00 [ 6.004436] pci_bus 0000:00: root bus resource [bus 00-ff] [ 6.009942] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] (bus address [0x10001000-0x10010fff]) [ 6.019437] pci_bus 0000:00: root bus resource [mem 0x10011000-0x17ffffff] [ 6.026359] pci 0000:00:00.0: [104c:b012] type 01 class 0x060400 [ 6.032370] pci_bus 0000:00: 2-byte config write to 0000:00:00.0 offset 0x4 may corrupt adjacent RW1C bits [ 6.042151] pci 0000:00:00.0: supports D1 [ 6.046156] pci 0000:00:00.0: PME# supported from D0 D1 D3hot [ 6.051930] pci 0000:00:00.0: reg 0x224: [mem 0x00000000-0x003fffff 64bit] [ 6.058802] pci 0000:00:00.0: VF(n) BAR0 space: [mem 0x00000000-0x00ffffff 64bit] (contains BAR0 for 4 VFs) [ 6.070865] pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring [ 6.079034] pci 0000:01:00.0: [144d:a808] type 00 class 0x010802 [ 6.085091] pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x00003fff 64bit] [ 6.092385] pci 0000:01:00.0: 15.752 Gb/s available PCIe bandwidth, limited by 8.0 GT/s PCIe x2 link at 0000:00:00.0 (capable of 31.504 Gb/s with 8.0 GT/s PCIe x4 link) [ 6.123674] pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01 [ 6.130306] pci 0000:00:00.0: BAR 7: assigned [mem 0x10400000-0x113fffff 64bit] [ 6.137635] pci 0000:00:00.0: BAR 14: assigned [mem 0x10100000-0x101fffff] [ 6.144514] pci 0000:01:00.0: BAR 0: assigned [mem 0x10100000-0x10103fff 64bit] [ 6.151851] pci 0000:00:00.0: PCI bridge to [bus 01] [ 6.162334] pci 0000:00:00.0: bridge window [mem 0x10100000-0x101fffff] [ 6.169411] pcieport 0000:00:00.0: of_irq_parse_pci: failed with rc=-22 [ 6.176042] pcieport 0000:00:00.0: enabling device (0000 -> 0002) [ 6.182469] pcieport 0000:00:00.0: PME: Signaling with IRQ 617 [ 6.188592] pcieport 0000:00:00.0: AER: enabled with IRQ 617 [ 6.194688] pcieport 0000:00:00.0: of_irq_parse_pci: failed with rc=-22 [ 6.201879] nvme nvme0: pci function 0000:01:00.0 [ 6.206701] nvme 0000:01:00.0: enabling device (0000 -> 0002) [ OK ] Created slice Slice /system/systemd[ 6.215812] SError Interrupt on CPU7, code 0x00000000bf000000 -- SError [ 6.215818] CPU: 7 PID: 64 Comm: kworker/u16:3 Not tainted 6.6.32-01373-gda8dd76693a4-dirty #35 [ 6.215823] Hardware name: Toradex Aquila AM69 on Aquila Development Board (DT) [ 6.215826] Workqueue: events_unbound deferred_probe_work_func [ 6.215841] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 6.215845] pc : nvme_pci_enable+0x5c/0x524 [ 6.215856] lr : nvme_pci_enable+0x50/0x524 [ 6.215859] sp : ffffffc0824737e0 [ 6.215861] x29: ffffffc0824737e0 x28: 0000000000000000 x27: ffffffc081106000 [ 6.215866] x26: ffffff8800283100 x25: ffffff8800c5b800 x24: 000000000000ffff [ 6.215870] x23: ffffff88020f71f0 x22: ffffff880102a000 x21: ffffff880102a000 [ 6.215875] x20: ffffff880102a0c0 x19: ffffff88020f7000 x18: ffffffffffffffff [ 6.215879] x17: 0000000000000000 x16: 0000000000000000 x15: 0720072007200720 [ 6.215883] x14: 0720072007200720 x13: ffffffc08111ad70 x12: 0000000000000621 [ 6.215887] x11: 000000000000020b x10: ffffffc081172d70 x9 : ffffffc08111ad70 [ 6.215891] x8 : 00000000ffffefff x7 : ffffffc081172d70 x6 : 0000000000000000 [ 6.215895] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000 [ 6.215899] x2 : 0000000000000000 x1 : ffffff8800ff8000 x0 : 0000000000000000 [ 6.215905] Kernel panic - not syncing: Asynchronous SError Interrupt [ 6.215908] CPU: 7 PID: 64 Comm: kworker/u16:3 Not tainted 6.6.32-01373-gda8dd76693a4-dirty #35 [ 6.215911] Hardware name: Toradex Aquila AM69 on Aquila Development Board (DT) [ 6.215912] Workqueue: events_unbound deferred_probe_work_func [ 6.215916] Call trace: [ 6.215919] dump_backtrace+0x94/0x114 [ 6.215928] show_stack+0x18/0x24 [ 6.215932] dump_stack_lvl+0x48/0x60 [ 6.215937] dump_stack+0x18/0x24 [ 6.215939] panic+0x314/0x364 [ 6.215945] nmi_panic+0x8c/0x90 [ 6.215949] arm64_serror_panic+0x6c/0x78 [ 6.215951] do_serror+0x3c/0x78 [ 6.215953] el1h_64_error_handler+0x30/0x48 [ 6.215957] el1h_64_error+0x64/0x68 [ 6.215960] nvme_pci_enable+0x5c/0x524 [ 6.215963] nvme_probe+0x280/0x6f8 [ 6.215966] pci_device_probe+0xa8/0x16c [ 6.215971] really_probe+0x184/0x3c8 [ 6.215975] __driver_probe_device+0x7c/0x16c [ 6.215978] driver_probe_device+0x3c/0x10c [ 6.215981] __device_attach_driver+0xbc/0x158 [ 6.215984] bus_for_each_drv+0x80/0xdc [ 6.215990] __device_attach+0xa8/0x1d4 [ 6.215993] device_attach+0x14/0x20 [ 6.215996] pci_bus_add_device+0x64/0xd4 [ 6.216002] pci_bus_add_devices+0x3c/0x88 [ 6.216006] pci_bus_add_devices+0x68/0x88 [ 6.216010] pci_host_probe+0x44/0xbc [ 6.216015] cdns_pcie_host_setup+0x10c/0x1c8 [ 6.216020] j721e_pcie_probe+0x3cc/0x444 [ 6.216024] platform_probe+0x68/0xdc [ 6.216027] really_probe+0x184/0x3c8 [ 6.216030] __driver_probe_device+0x7c/0x16c [ 6.216032] driver_probe_device+0x3c/0x10c [ 6.216035] __device_attach_driver+0xbc/0x158 [ 6.216037] bus_for_each_drv+0x80/0xdc [ 6.216042] __device_attach+0xa8/0x1d4 [ 6.216044] device_initial_probe+0x14/0x20 [ 6.216047] bus_probe_device+0xac/0xb0 [ 6.216052] deferred_probe_work_func+0x9c/0xec [ 6.216054] process_one_work+0x138/0x260 [ 6.216061] worker_thread+0x32c/0x438 [ 6.216065] kthread+0x118/0x11c [ 6.216070] ret_from_fork+0x10/0x20 [ 6.216074] SMP: stopping secondary CPUs [ 6.216084] Kernel Offset: disabled [ 6.216086] CPU features: 0x0,80000000,28020000,1000420b [ 6.216089] Memory Limit: none [ 6.539032] ---[ end Kernel panic - not syncing: Asynchronous SError Interrupt ]---
我尝试使用此补丁而不做任何更改： lore.kernel.org/.../
"你说什么? 您是否遇到同样的行为？
Emanuele
