XPost: linux.debian.bugs.dist   
   From: carnil@debian.org   
      
   Control: tags -1 + moreinfo   
      
   On Wed, Jan 21, 2026 at 06:59:33PM +0100, rpnpif wrote:   
   > Package: src:linux   
   > Version: 6.12.57-1~bpo12+1   
   > Severity: important   
   >   
   > Dear Maintainer,   
   >   
   > On startup, firewire-ohci crashes   
   > If modprobe firewire-core, there are no crash but that doesn't mean it   
   > works well, because the /dev/xxxx plugin is not created.   
   >   
   > [   14.149170] Call Trace:   
   > [   14.149174]     
   > [   14.149177]  dump_stack_lvl+0x64/0x80   
   > [   14.149185]  read_phy_reg+0x91/0xa0 [firewire_ohci]   
   > [   14.149196]  ohci_enable+0x3a3/0x5b0 [firewire_ohci]   
   > [   14.149204]  fw_card_add+0x85/0x110 [firewire_core]   
   > [   14.149232]  pci_probe+0x492/0x620 [firewire_ohci]   
   > [   14.149241]  local_pci_probe+0x45/0xa0   
   > [   14.149247]  pci_device_probe+0x20a/0x240   
   > [   14.149251]  really_probe+0xd6/0x380   
   > [   14.149255]  ? __pfx___driver_attach+0x10/0x10   
   > [   14.149258]  __driver_probe_device+0x78/0x150   
   > [   14.149261]  driver_probe_device+0x1f/0x90   
   > [   14.149264]  __driver_attach+0xd2/0x1c0   
   > [   14.149267]  bus_for_each_dev+0x88/0xd0   
   > [   14.149272]  bus_add_driver+0x112/0x240   
   > [   14.149275]  driver_register+0x59/0x100   
   > [   14.149279]  ? __pfx_fw_ohci_init+0x10/0x10 [firewire_ohci]   
   > [   14.149285]  do_one_initcall+0x5b/0x320   
   > [   14.149292]  do_init_module+0x60/0x270   
   > [   14.149296]  __do_sys_init_module+0x17f/0x1b0   
   > [   14.149300]  do_syscall_64+0x82/0x190   
   > [   14.149307]  ? vfs_read+0x247/0x370   
   > [   14.149312]  ? arch_exit_to_user_mode_prepare.constprop.0+0x16/0xa0   
   > [   14.149316]  ? syscall_exit_to_user_mode+0x37/0x1b0   
   > [   14.149319]  ? do_syscall_64+0x8e/0x190   
   > [   14.149321]  ? __count_memcg_events+0x53/0xf0   
   > [   14.149325]  ? count_memcg_events.constprop.0+0x1a/0x30   
   > [   14.149328]  ? handle_mm_fault+0xae/0x2d0   
   > [   14.149332]  ? do_user_addr_fault+0x379/0x670   
   > [   14.149335]  ? arch_exit_to_user_mode_prepare.constprop.0+0x16/0xa0   
   > [   14.149339]  entry_SYSCALL_64_after_hwframe+0x76/0x7e   
   > [   14.149345] RIP: 0033:0x7fd1fbe08d2a   
   > [   14.149349] Code: 48 8b 0d d9 90 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66   
   2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 af 00 00 00 0f 05 <48>   
   3d 01 f0 ff ff 73 01 c3 48 8b 0d a6 90 0c 00 f7 d8 64 89 01 48   
   > [   14.149351] RSP: 002b:00007ffcec140b98 EFLAGS: 00000246 ORIG_RAX:   
   00000000000000af   
   > [   14.149355] RAX: ffffffffffffffda RBX: 00005566438d8eb0 RCX:   
   00007fd1fbe08d2a   
   > [   14.149357] RDX: 00007fd1fbf3cefd RSI: 000000000002220e RDI:   
   0000556643a6a3a0   
   > [   14.149358] RBP: 00007fd1fbf3cefd R08: 0000000000000007 R09:   
   000055664383ef50   
   > [   14.149360] R10: 0000000000000005 R11: 0000000000000246 R12:   
   0000556643a6a3a0   
   > [   14.149361] R13: 0000000000000000 R14: 00005566438ddc70 R15:   
   00007ffcec140e00   
   > [   14.149364]     
   > [   14.150242] firewire_ohci 0000:02:00.0: probe with driver firewire_ohci   
   failed with error -16   
   > [   14.150382] firewire_ohci 0000:02:00.0: removed fw-ohci device   
      
   Your kernel is currently tainted due to OOT modules, can you please   
   boot without loading those, trigger the issue and the attache the   
   *full* kernel log please?   
      
   Additionally: is that an experienced regression from a previous   
   running kernel? Which one?   
      
   Can you as well test newer kernel, from the upper suite at least   
   6.12.63-1 from trixie, but additonally the ones in unstable and   
   experimental so we get a picture on the if newer upstream versions   
   would expose the problem as well.   
      
   Regards,   
   Salvatore   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)