Re: RFC: remove set_fs for m68k

Michael Schmitz
2021-07-11T07:20:35Z

Hi Christoph,

Am 09.07.2021 um 19:01 schrieb Christoph Hellwig:
> Hi all,
>
> this series converts m68k to the new world where set_fs is gone to make
> the uaccess routines work on kernel pointers. Note that it is compile
> tested only and thus needs to be handled with care.

Testing your series, I've got this in the console log:

[16534.130000] *** FORMAT ERROR *** FORMAT=0
[16534.150000] Current process id is 1347
[16534.160000] BAD KERNEL TRAP: 00000000
[16534.180000] Modules linked in: atari_scsi ne 8390p
[16534.210000] PC: [<00002a8c>] resume_userspace+0x14/0x16
[16534.230000] SR: 2200 SP: d1b6e0e8 a2: 00000000
[16534.240000] d0: 0000001e d1: 00000003 d2: 00000578 d3: 00000000
[16534.270000] d4: ffffffff d5: 00000001 a0: 00000578 a1: 00000080
[16534.300000] Process savelog (pid: 1347, task=e3955528)
[16534.310000] Frame format=0
[16534.330000] Stack from 005e9fa4:
[16534.330000] 02108005 0d06b008 1eeeb649 007e0001 00aea040
003ec318 005e9e68 000279a2
[16534.330000] 000b0000 00000000 00000000 030dfffb 0044fffa
0e000000 fffa1a00 fffa1c00
[16534.330000] fffa1e00 fffb0e40 fffb0e80 00049e02 00000040
0085a800 00000001
[16534.430000] Call Trace: [<000279a2>] warn_slowpath_fmt+0x0/0x62
[16534.460000] [<000b0000>] vm_map_ram+0x144/0x5ae
[16534.490000] [<00049e02>] __handle_irq_event_percpu+0x38/0xce
[16534.520000]
[16534.540000] Code: 9f38 9f38 9f38 9f38 9f38 9f38 9f38 9f38 <9f38> 9f38
9f38 9f38 9f38 9f38 9f38 9f38 9f38 9f38 9f38 9f38 9f38 9f38 9f38 9f38

Never seen the like of it before...

Cheers,

Michael