isp(4) mutex recursion.

[mjacob at freebsd.org]

Interesting and noted. Try doing it not as a module.


On Sat, 12 May 2007, Pawel Jakub Dawidek wrote:

> I've this panic on isp.ko load with recent current:
>
> isp0: <Qlogic ISP 2300 PCI FC-AL Adapter> port 0x3000-0x30ff mem 0xfc400000-0xfc400fff irq 27 at device 4.0 on pci2
> registered firmware set <isp_2300>
> isp0: [ITHREAD]
> isp0: Board Type 2300, Chip Revision 0x1, loaded F/W Revision 3.3.19
> panic: _mtx_lock_sleep: recursed on non-recursive mutex isp @ /usr/home/src/HEAD/src/sys/modules/isp/../../dev/isp/isp_freebsd.c:688
>
> cpuid = 1
> KDB: enter: panic
> [thread pid 560 tid 100030 ]
> Stopped at      kdb_enter+0x2b: nop
> db> tr
> Tracing pid 560 tid 100030 td 0xc36ee870
> kdb_enter(c06022ed) at kdb_enter+0x2b
> panic(c06014aa,c3c40298,c3c3fb2b,2b0,c04c636f,...) at panic+0x11c
> _mtx_lock_sleep(c3778690,c36ee870,0,c3c3fb2b,2b0) at _mtx_lock_sleep+0x3a
> _mtx_lock_flags(c3778690,0,c3c3fb2b,2b0,0,...) at _mtx_lock_flags+0x94
> isp_intr_enable(c3778600,c0671a60,0,c0604304,47,...) at isp_intr_enable+0x20
> run_interrupt_driven_config_hooks(0) at run_interrupt_driven_config_hooks+0x43
> config_intrhook_establish(c3778638,c3778638,c3778690,3e5b3000,0,...) at config_intrhook_establish+0xb9
> isp_attach(c3778600,c05f7a2a,1,c3c41560,30,...) at isp_attach+0x81
> isp_pci_attach(c3789680) at isp_pci_attach+0x127d
> device_attach(c3789680,c3789680,c3789680,0,c37e4600,...) at device_attach+0x58
> device_probe_and_attach(c3789680,c3789680,c37e4600) at device_probe_and_attach+0xe0
> pci_driver_added(c3789700,c3c414b0) at pci_driver_added+0xd1
> devclass_add_driver(c36dac00,c3c414b0) at devclass_add_driver+0xd5
> driver_module_handler(c3b152c0,0,c3c4149c,c066ca10,c0601132,7b) at driver_module_handler+0x59
> module_register_init(c3c41490) at module_register_init+0x66
> linker_file_sysinit(c3bdd100,c3bdd100,c066c564,c05ffa8f,196,...) at linker_file_sysinit+0x9d
> linker_load_file(c383a520,e2296c20) at linker_load_file+0x102
> linker_load_module(0,c37e6000,0,0,e2296c58,c066c564,c05ffa8f,364) at linker_load_module+0xdb
> kern_kldload(c36ee870,c37e6000,e2296c7c) at kern_kldload+0x92
> kldload(c36ee870,e2296d00) at kldload+0x4f
> syscall(e2296d38) at syscall+0x242
> Xint0x80_syscall() at Xint0x80_syscall+0x20
> --- syscall (304, FreeBSD ELF32, kldload), eip = 0x280c17ab, esp =
> 0xbfbfec1c, ebp = 0xbfbfec58 ---
>
> -- 
> Pawel Jakub Dawidek                       http://www.wheel.pl
> pjd at FreeBSD.org                           http://www.FreeBSD.org
> FreeBSD committer                         Am I Evil? Yes, I Am!
>