Date: Sun, 07 Apr 2024 13:40:59 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 278234] linsysfs assumes pci domain 0000 Message-ID: <bug-278234-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D278234 Bug ID: 278234 Summary: linsysfs assumes pci domain 0000 Product: Base System Version: 15.0-CURRENT Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: zeev@amazon.com When booting on a system with 2 pci domains (3 and 11) and linux compatibil= ity layer enabled on arm64 coherent system,=20 crash was observed with the following signature: Mounting local filesystems:.M panic: pfs_add_node(): homonymous siblingsM cpuid =3D 150M time =3D 1711898170M KDB: stack backtrace:M db_trace_self() at db_trace_selfM db_trace_self_wrapper() at db_trace_self_wrapper+0x38M vpanic() at vpanic+0x1a4M panic() at panic+0x48M pfs_add_node() at pfs_add_node+0x16cM pfs_create_dir() at pfs_create_dir+0xc0M linsysfs_run_bus() at linsysfs_run_bus+0x36cM linsysfs_run_bus() at linsysfs_run_bus+0x23cM linsysfs_run_bus() at linsysfs_run_bus+0x23cM linsysfs_run_bus() at linsysfs_run_bus+0x23cM linsysfs_run_bus() at linsysfs_run_bus+0x23cM linsysfs_run_bus() at linsysfs_run_bus+0x23cM linsysfs_init() at linsysfs_init+0x1b4M pfs_init() at pfs_init+0xb0M vfs_modevent() at vfs_modevent+0x368M module_register_init() at module_register_init+0xb4M linker_load_module() at linker_load_module+0xac8M kern_kldload() at kern_kldload+0x190M sys_kldload() at sys_kldload+0x64M do_el0_sync() at do_el0_sync+0x59cM handle_el0_sync() at handle_el0_sync+0x48M --- exception, esr 0x56000000M KDB: enter: panicM [ thread pid 115 tid 101679 ]M Stopped at kdb_enter+0x4c: str xzr, [x19, #1408]M This is caused by sys/compat/linsysfs/linsysfs.c:linsysfs_init() hardcoding= pci domain 0: ... /* /sys/devices/... */ dir =3D pfs_create_dir(root, "devices", NULL, NULL, NULL, 0); pci =3D pfs_create_dir(dir, "pci0000:00", NULL, NULL, NULL, 0); devclass =3D devclass_find("root"); if (devclass =3D=3D NULL) { return (0); } dev =3D devclass_get_device(devclass, 0); linsysfs_run_bus(dev, pci, scsi, chardev, drm, "/pci0000:00", "0000= "); ... --=20 You are receiving this mail because: You are the assignee for the bug.=
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