https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=231051
Bug ID: 231051
Summary: [IXL] driver assert when locks checks are enabled
Product: Base System
Version: CURRENT
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
The IXL driver fails to load due to an assertion on an unlocked mutex.
The attach routine doesn't take the mutex before calling some initialisations
functions.
There is the backtrace:
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2e/frame 0xfffffe0f7af339f0
kdb_backtrace() at kdb_backtrace+0x52/frame 0xfffffe0f7af33a10
vpanic() at vpanic+0x1df/frame 0xfffffe0f7af33a80
kproc_shutdown() at kproc_shutdown/frame 0xfffffe0f7af33ae0
__mtx_assert() at __mtx_assert+0x102/frame 0xfffffe0f7af33b50
ixl_add_hw_filters() at ixl_add_hw_filters+0x63/frame 0xfffffe0f7af33bb0
ixl_add_filter() at ixl_add_filter+0x1a2/frame 0xfffffe0f7af33c00
ixl_init_filters() at ixl_init_filters+0x44/frame 0xfffffe0f7af33c20
ixl_attach() at ixl_attach+0xb48/frame 0xfffffe0f7af33d60
DEVICE_ATTACH() at DEVICE_ATTACH+0x87/frame 0xfffffe0f7af33da0
device_attach() at device_attach+0xbc/frame 0xfffffe0f7af33df0
device_probe_and_attach() at device_probe_and_attach+0x74/frame
0xfffffe0f7af33e20
pci_driver_added() at pci_driver_added+0x105/frame 0xfffffe0f7af33e70
BUS_DRIVER_ADDED() at BUS_DRIVER_ADDED+0x8f/frame 0xfffffe0f7af33eb0
devclass_driver_added() at devclass_driver_added+0x7a/frame 0xfffffe0f7af33ee0
devclass_add_driver() at devclass_add_driver+0x172/frame 0xfffffe0f7af33f30
driver_module_handler() at driver_module_handler+0xc9/frame 0xfffffe0f7af33f90
module_register_init() at module_register_init+0xc0/frame 0xfffffe0f7af33ff0
linker_file_sysinit() at linker_file_sysinit+0x1b4/frame 0xfffffe0f7af34050
linker_load_file() at linker_load_file+0x14d/frame 0xfffffe0f7af340c0
linker_load_module() at linker_load_module+0x191/frame 0xfffffe0f7af34130
kern_kldload() at kern_kldload+0xf9/frame 0xfffffe0f7af34190
sys_kldload() at sys_kldload+0x7b/frame 0xfffffe0f7af341c0
syscallenter() at syscallenter+0x4af/frame 0xfffffe0f7af34230
amd64_syscall() at amd64_syscall+0x1f/frame 0xfffffe0f7af34330
Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe0f7af34330
--- syscall (304, FreeBSD ELF64, sys_kldload), rip = 0x80086673a, rsp =
0x7fffffffe798, rbp = 0x7fffffffecb0
---
KDB: enter: panic
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