Re: NetBSD 9.2 (STABLE) kernel hangs without panic or ddb

[BERTRAND Joël <joel.bertrand%systella.fr@localhost>]

BERTRAND Joël a écrit :
> BERTRAND Joël a écrit :
>> matthew green a écrit :
>>> i wonder if this is lack of buf_destroy() in rf_FreeDiskQueueData(),
>>> to match the buf_init() in rf_CreateDiskQueueData().
>>>
>>> can you try this patch?
>>
>>     I can, but I don't know when I can reboot this server to test. I hope
>> in a few days.
>>
>>     Best regards,
>>
>>     JKB
>>
> 
> Hello,
> 
> System runs very slowly, tries to boot but doesn't reach login prompt.
> It stalls after iscsi device creation.
> 
> Best regards,
> 
> JB

	Hello,

	Some (bad) news. I believe that kernel now panics intead of enter in a
lock :

[ 954616,657421] S-1C-1: ccb_timeout: num=1 total=1 disp=0
[ 954616,657421] uvm_fault(0xffffffff815862c0, 0x0, 2) -> e
[ 954616,657421] fatal page fault in supervisor mode
[ 954616,657421] trap type 6 code 0x2 rip 0xffffffff8022800c cs 0x8
rflags 0x10246 cr2 0x10 ilevel 0 rsp 0xffffbc813c0c9f48
[ 954616,657421] curlwp 0xffffdfec9386ba60 pid 0.181 lowest kstack
0xffffbc813c0c72c0
[ 954616,657421] panic: trap
[ 954616,657421] cpu1: Begin traceback...
[ 954616,657421] vpanic() at netbsd:vpanic+0x160
[ 954616,657421] snprintf() at netbsd:snprintf
[ 954616,657421] startlwp() at netbsd:startlwp
[ 954616,657421] alltraps() at netbsd:alltraps+0xbb
[ 954616,657421] ccb_timeout() at netbsd:ccb_timeout+0xf0
[ 954616,657421] iscsi_cleanup_thread() at netbsd:iscsi_cleanup_thread+0x2b6
[ 954616,657421] cpu1: End traceback...

[ 954616,657421] dumping to dev 18,1 (offset=251919, size=4162814):
[ 954616,657421] dump

	Of course, no crash dump was written :-(

	I have a debug kernel but I don't know how investigate.

	Best regards,

	JB