Opened 4 years ago
Closed 4 years ago
#16083 closed bug (duplicate)
Unrecoverable system crash upon cold and hotplugging Wacom Intuos CTL-490
| Reported by: | cafeina | Owned by: | stippi |
|---|---|---|---|
| Priority: | normal | Milestone: | R1/beta2 |
| Component: | Drivers/Input/Wacom | Version: | R1/Development |
| Keywords: | wacom, intuos, ctl-490, panic | Cc: | |
| Blocked By: | #14589 | Blocking: | |
| Platform: | All |
Description (last modified by )
Environment
Latest bleeding edge available at the moment hrev54226. Version x86_64. Tested directly in hardware via Live USB.
Issue
Hotplugging a Wacom tablet, model Intuos CTL-490, quickly makes the system to panic crash and open up a unrecoverable KDL.
Booting the system with this Wacom already plugged also ends up having the same result.
"PANIC: SMAP violation user-mapped address 0x.... touched from kernel 0x..."
This problem is not new and it has been present for a while. Patches in hrev54213 did not solve this crashes.
Attachments (1)
Change History (5)
by , 4 years ago
| Attachment: | photo_2020-05-19.jpg added |
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comment:1 by , 4 years ago
| Description: | modified (diff) |
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comment:2 by , 4 years ago
See also comment https://dev.haiku-os.org/ticket/16003#comment:7 about what happened before hrev54213 with hotplugging (it did not crash the system, but neither enable the tablet to use).
comment:3 by , 4 years ago
I think I see the reason for this: the driver hasn’t been updated to be “SMAP safe” (As in the driver does not use special methods like “user_memcpy” to protect the kernel from userspace). I would take a look at this, but I have unfortunately been very busy lately.
comment:4 by , 4 years ago
| Blocked By: | 14589 added |
|---|---|
| Platform: | x86-64 → All |
| Resolution: | → duplicate |
| Status: | new → closed |
Screenshot of a Kernel Panic after hotplugging a Wacom Intuos CTL-490 tablet