Bug 256730
| Summary: | [Linuxulator]: linsysfs adds duplicate pathnames on Ampere | ||||||
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| Product: | Base System | Reporter: | John F. Carr <jfc> | ||||
| Component: | kern | Assignee: | freebsd-emulation (Nobody) <emulation> | ||||
| Status: | New --- | ||||||
| Severity: | Affects Only Me | CC: | dch, dchagin, emaste, mhorne | ||||
| Priority: | --- | ||||||
| Version: | 13.0-STABLE | ||||||
| Hardware: | arm64 | ||||||
| OS: | Any | ||||||
| Bug Depends on: | |||||||
| Bug Blocks: | 247219 | ||||||
| Attachments: |
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Can you add the firmware version installed on the eMAG system? (In reply to Ed Maste from comment #1) The following is from the AMI boot screen. Can I get it from the OS? Version 2.19.1268 BIOS Version: 1.12 HVE104N(11/29/2019) BMC firmware: 11.05.111 This bug persists after updating to newer firmware. Here is the output of pciconf -l running a recent 13.2-STABLE: pcib1@pci0:0:0:0: class=0x060400 rev=0x04 hdr=0x01 vendor=0x1def device=0xe005 subvendor=0x0000 subdevice=0x0000 mlx5_core0@pci0:1:0:0: class=0x020000 rev=0x00 hdr=0x00 vendor=0x15b3 device=0x1015 subvendor=0x15b3 subdevice=0x0057 mlx5_core1@pci0:1:0:1: class=0x020000 rev=0x00 hdr=0x00 vendor=0x15b3 device=0x1015 subvendor=0x15b3 subdevice=0x0057 pcib3@pci2:0:0:0: class=0x060400 rev=0x04 hdr=0x01 vendor=0x1def device=0xe007 subvendor=0x0000 subdevice=0x0000 igb0@pci2:1:0:0: class=0x020000 rev=0x03 hdr=0x00 vendor=0x8086 device=0x1533 subvendor=0x8086 subdevice=0x0001 pcib5@pci3:0:0:0: class=0x060400 rev=0x04 hdr=0x01 vendor=0x1def device=0xe008 subvendor=0x0000 subdevice=0x0000 pcib7@pci4:0:0:0: class=0x060400 rev=0x04 hdr=0x01 vendor=0x1def device=0xe009 subvendor=0x0000 subdevice=0x0000 pcib9@pci5:0:0:0: class=0x060400 rev=0x04 hdr=0x01 vendor=0x1def device=0xe00a subvendor=0x0000 subdevice=0x0000 pcib11@pci6:0:0:0: class=0x060400 rev=0x04 hdr=0x01 vendor=0x1def device=0xe00b subvendor=0x0000 subdevice=0x0000 nvme0@pci6:1:0:0: class=0x010802 rev=0x00 hdr=0x00 vendor=0x1bb1 device=0x0100 subvendor=0x1bb1 subdevice=0x0123 pcib13@pci7:0:0:0: class=0x060400 rev=0x04 hdr=0x01 vendor=0x1def device=0xe00c subvendor=0x0000 subdevice=0x0000 pcib14@pci7:1:0:0: class=0x060400 rev=0x04 hdr=0x01 vendor=0x1a03 device=0x1150 subvendor=0x1a03 subdevice=0x1150 vgapci0@pci7:2:0:0: class=0x030000 rev=0x41 hdr=0x00 vendor=0x1a03 device=0x2000 subvendor=0x1a03 subdevice=0x2000 |
Created attachment 225948 [details] dmesg output On my Ampere arm64 server (but not on a Raspberry Pi 3B) I get a panic trying to load linsysfs with INVARIANTS defined. The panic message is "pfs_add_node(): homonymous siblings". With a debugging printf instead of a panic I see linsysfs_run_bus is trying to add several instances of "0000:00:00.0". # ls /usr/jail/0/linux/sys/devices/pci0000:00 0000:00:00.0 0000:00:00.0 0000:00:00.0 0000:00:00.0 0000:00:00.0 0000:00:00.0 0000:00:00.0 There might be two bugs here -- bad PCI enumeration code for the Ampere server and a lack of defensive programming in the linsysfs kernel module. I see some warnings from PCI code in attached dmesg output which might be related.