On Thursday 15 March 2018 23:04:40 Ondrej Zary wrote:

On Thursday 15 March 2018 09:04:55 Christoph Hellwig wrote:

quoted

On Thu, Mar 15, 2018 at 09:04:24AM +0100, Ondrej Zary wrote:

quoted

On Thursday 15 March 2018, Christoph Hellwig wrote:

quoted

The paride drivers are some of the cruftiest, grottiest block drivers
(besides drivers/ide and floppy.c) and have seen one single targeted
commit since the dawn of git in 2007.  Drop them to make block layer
improvements easier.

This will make my parallel port ZIP and LS-120 drives useless :(

So you are still using them and the code actually works properly?

I don't use them daily, only occasionally. Last time they worked.
Checked now and it seems to work:

Also found an old CD-ROM drive mounted in a HP C4381A box instead of the long-dead CD
Writer 7200. Not as good as the pf driver :)

# modprobe epat
[   50.446246] paride: epat registered as protocol 0
# modprobe pcd drive0=0x378,0
[   56.694140] pcd: pcd version 1.07, major 46, nice 0
[   56.803399] pcd0: Sharing parport0 at 0x378
[   56.804336] pcd0: epat 1.02, Shuttle EPAT chip c6 at 0x378,
[   56.804339] mode 5 (EPP-32), delay 1
[   56.837419] pcd0: Master: 8X CD-ROM   V1.0
[   56.839420] pcd0: mode sense capabilities completion: alt=0x51 stat=0x51 err=0x60 loop=0 phase=3
[   56.842259] pcd0: mode sense capabilities: Sense key: 6, ASC: 29, ASQ: 0
[   56.843149] cdrom: Uniform CD-ROM driver Revision: 3.20
[   56.843757] BUG: unable to handle kernel paging request at f0b6a334
[   56.844371] IP: register_cdrom+0x85/0x185 [cdrom]
[   56.844971] *pde = 2f564067 *pte = 2c343161
[   56.845692] Oops: 0003 [#1] SMP
[   56.846564] Modules linked in: pcd(+) cdrom epat paride i2c_dev nouveau sg parport_pc 8139cp wmi hwmon ttm parport intel_agp
[   56.847467] CPU: 0 PID: 1790 Comm: modprobe Not tainted 4.16.0-rc4+ #217
[   56.848340] Hardware name:  /848P-ICH5, BIOS 6.00 PG 02/03/2005
[   56.849275] EIP: register_cdrom+0x85/0x185 [cdrom]
[   56.850190] EFLAGS: 00010246 CPU: 0
[   56.851104] EAX: f0b61155 EBX: f0b6a300 ECX: ef992164 EDX: ef98c9cc
[   56.852029] ESI: f0b6bb80 EDI: ec351dfc EBP: ec351de4 ESP: ec351dd8
[   56.852961]  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[   56.853895] CR0: 80050033 CR2: f0b6a334 CR3: 2c22d000 CR4: 00000690
[   56.854832] Call Trace:
[   56.855764]  pcd_init+0x37e/0x1000 [pcd]
[   56.856692]  ? _raw_spin_trylock_bh+0x1d/0x3a
[   56.857615]  ? __switch_to_asm+0x26/0x40
[   56.858541]  ? __switch_to_asm+0x1a/0x40
[   56.859442]  ? __switch_to_asm+0x26/0x40
[   56.860334]  ? 0xf0b6e000
[   56.861172]  do_one_initcall+0x84/0x111
[   56.862074]  ? __schedule+0x38f/0x3dd
[   56.862990]  ? virt_to_head_page+0x19/0x1b
[   56.863883]  ? virt_to_head_page+0x19/0x1b
[   56.864768]  ? _cond_resched+0x1e/0x22
[   56.865626]  ? kmem_cache_alloc+0x86/0xa9
[   56.866486]  ? do_init_module+0x17/0x1ad
[   56.867333]  do_init_module+0x46/0x1ad
[   56.868164]  load_module+0x1708/0x1b23
[   56.868997]  ? kernel_read_file+0x116/0x143
[   56.869820]  SyS_finit_module+0x62/0x67
[   56.870648]  do_int80_syscall_32+0x50/0x62
[   56.871477]  entry_INT80_32+0x2a/0x2a
[   56.872308] EIP: 0xb7fd6a02
[   56.873134] EFLAGS: 00000292 CPU: 0
[   56.873951] EAX: ffffffda EBX: 00000004 ECX: 007aff18 EDX: 00000000
[   56.874749] ESI: 007b0278 EDI: 007aff90 EBP: 00000000 ESP: bffbbac8
[   56.875590]  DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b
[   56.876431] Code: 0c 00 75 0d 83 7b 10 00 75 07 c7 43 34 6f ff ff ff 83 7b 14 00 75 04 83 63 34 fc 83 7b 18 00 75 04 83 63 34 fb 83 7b 1c 00 75 04 <83> 63 34 f7 83 7b 24 00 75 04 83 63 34 df 83 7b 28 00 75 04 83
[   56.878264] EIP: register_cdrom+0x85/0x185 [cdrom] SS:ESP: 0068:ec351dd8
[   56.879220] CR2: 00000000f0b6a334
[   56.880193] ---[ end trace 596e4157e238f0e3 ]---


-- 
Ondrej Zary