> On 14. Dec 2024, at 00:06, Apostolos Syropoulos via openindiana-discuss 
> <openindiana-discuss@openindiana.org> wrote:
> 
> Hi,
> I have an external USB disk that has an NTFS file system.  I am using 
> the command 
> 
> # ntfs-3g /dev/dsk/c13t0d0p1 /mnt/
> to mount the file system and everything works just fine, However,when I try 
> to inspect  the folder /mnt with the file viewer thesystem crashes (I am 
> using illumos-9d4bc241fd, October 2024).Here are the relevant details that 
> dmesg gave me:
> 
> 
> Dec 13 21:55:11 adalind savecore: [ID 570001 auth.error] reboot after panic: 
> BAD
>  TRAP: type=e (#pf Page fault) rp=fffffe001113cc50 addr=0 occurred in module 
> "un
> ix" due to a NULL pointer dereference
> Dec 13 21:55:13 adalind savecore: [ID 970367 auth.error] Panic crashdump 
> pending
>  on dump device but dumpadm -n in effect; run savecore(8) manually to 
> extract. I
> mage UUID c0c54af8-4972-4f2c-85ba-c20b0272ea0b.
> Dec 13 21:55:32 adalind fmd: [ID 377184 daemon.error] SUNW-MSG-ID: 
> SUNOS-8000-KL
> , TYPE: Defect, VER: 1, SEVERITY: Major
> Dec 13 21:55:32 adalind EVENT-TIME: Fri Dec 13 21:55:31 EET 2024
> Dec 13 21:55:32 adalind PLATFORM: To-be-filled-by-O.E.M., CSN: 
> To-be-filled-by-O
> .E.M., HOSTNAME: adalind
> Dec 13 21:55:32 adalind SOURCE: software-diagnosis, REV: 0.1
> Dec 13 21:55:32 adalind EVENT-ID: c0c54af8-4972-4f2c-85ba-c20b0272ea0b
> Dec 13 21:55:32 adalind DESC: The system has rebooted after a kernel panic.  
> Ref
> er to http://illumos.org/msg/SUNOS-8000-KL for more information.
> Dec 13 21:55:32 adalind AUTO-RESPONSE: The failed system image was dumped to 
> the
>  dump device.  If savecore is enabled (see dumpadm(8)) a copy of the dump 
> will b
> e written to the savecore directory .
> Dec 13 21:55:32 adalind IMPACT: There may be some performance impact while 
> the p
> anic is copied to the savecore directory.  Disk space usage by panics can be 
> sub
> stantial.
> Dec 13 21:55:32 adalind REC-ACTION: If savecore is not enabled then please 
> take 
> steps to preserve the crash image.
> Dec 13 21:55:32 adalind Use 'fmdump -Vp -u 
> c0c54af8-4972-4f2c-85ba-c20b0272ea0b'
>  to view more panic detail.  Please refer to the knowledge article for 
> additiona
> l information.
> Can anybody tell me what is happening? This is the first time I see such a 
> thing.
> Regards,Apostolos
> 
> ----------------------Apostolos Syropoulos
> Xanthi, Greece
> 

You have found bug, it does tell the unix (kernel) has code which did 
dereference NULL pointer (not good). If possible, run savecore as root and 
upload the created vmdmp.X file with bug report:)

rgds,
toomas
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