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=?utf-8?B?Tmhpc3hmazhqSjM4NnZUUDRXQzl4SjNrdVM3dUFtREYwZEpjY3JPOG5ZZjFs?= =?utf-8?B?UWV3OHdaWUQrZ2l1em9GU2hucUlteFh4a3JNcVh3NEhjN2VmVVFJUi9OdTNa?= =?utf-8?B?bVVJc2hoSlgydUVtSnZWQnJnbndOSU92Y05Kb0JPZnh6OFFaVkp3S3RDWlZE?= =?utf-8?B?MndKQlRpd25mV2djYUQ2emR4UzdjMlRPcUM1dUR5MWRSY0RwZmZzQ2NiSnBY?= =?utf-8?B?MVBRUDJsb0EwNlozeTF2T1RreElOR2I4STFkeG1rM0I0QmE3M2xWSTh6RDNC?= =?utf-8?B?WWQxM3pBRVBUNUx5cmdUR3duWnFzWW5pUnJGYTB2RU5xWHROZXBEMVpud2N0?= =?utf-8?Q?0NKE2COa5wFoNxrQ=3D?= X-MS-Exchange-CrossTenant-Network-Message-Id: 6d1840a0-af02-48df-8250-08de6316b7b0 X-MS-Exchange-CrossTenant-AuthSource: CH0PR11MB8086.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 03 Feb 2026 11:23:56.1286 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 4ET4k5l29qJ4NiuFemPhTy7+Z4hWo8LIs2CXzC0paCZzQjtcJHIPbElZVKsETLXBnMqv2P05QpiiQaxObO3f3TK+twMZOvwq0/neqIhopno= X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ2PR11MB8565 X-OriginatorOrg: intel.com On 2/2/26 10:02, Lukas Wunner wrote: > [cc += Tony, Przemek (ice driver maintainers), start of thread is here: > https://lore.kernel.org/all/20260123104034.429060-1-LeoLiu-oc@zhaoxin.com/ > ] > thank you for the report, I've asked people working on similar issue to take a look also here > On Mon, Feb 02, 2026 at 02:00:55PM +0800, LeoLiu-oc wrote: >> The kernel version I am using is 6.18.6. > [...] >> The complete log of the kernel panic is as follows: >> >> [ 100.304077][ T843] list_del corruption, ffff8881418b79e8->next is LIST_POISON1 (dead000000000100) >> [ 100.312989][ T843] ------------[ cut here ]------------ >> [ 100.318268][ T843] kernel BUG at lib/list_debug.c:56! >> [ 100.323380][ T843] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI >> [ 100.329250][ T843] CPU: 7 PID: 843 Comm: irq/27-pciehp Tainted: P W OE ------- ---- 6.6.0-32.7.v2505.ky11.x86_64 #1 >> [ 100.340793][ T843] Source Version: 71d5b964051132b7772acd935972fca11462bbfe >> [ 100.359228][ T843] RIP: 0010:__list_del_entry_valid_or_report+0x7f/0xc0 >> [ 100.365877][ T843] Code: 66 4b a6 e8 c3 43 a9 ff 0f 0b 48 89 fe 48 c7 c7 10 67 4b a6 e8 b2 43 a9 ff 0f 0b 48 89 fe 48 c7 c7 40 67 4b a6 e8 a1 43 a9 ff <0f> 0b 48 89 fe 48 89 ca 48 c7 c7 78 67 4b a6 e8 8d 43 a9 ff 0f 0b >> [ 100.385158][ T843] RSP: 0018:ffffc9000f70fc08 EFLAGS: 00010246 >> [ 100.391024][ T843] RAX: 000000000000004e RBX: ffff8881418b79e8 RCX: 0000000000000000 >> [ 100.398781][ T843] RDX: 0000000000000000 RSI: ffff8897df5a32c0 RDI: ffff8897df5a32c0 >> [ 100.406538][ T843] RBP: ffff8881257f9608 R08: 0000000000000000 R09: 0000000000000003 >> [ 100.414294][ T843] R10: ffffc9000f70fa90 R11: ffffffffa6fee508 R12: 0000000000000000 >> [ 100.422050][ T843] R13: ffff8881257f9608 R14: ffff888116507c28 R15: ffff888116507c28 >> [ 100.429807][ T843] FS: 0000000000000000(0000) GS:ffff8897df580000(0000) knlGS:0000000000000000 >> [ 100.438511][ T843] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >> [ 100.444891][ T843] CR2: 00007f9563bac1c0 CR3: 0000000c4be26004 CR4: 0000000000570ee0 >> [ 100.452647][ T843] PKRU: 55555554 >> [ 100.456017][ T843] Call Trace: >> [ 100.459129][ T843] >> [ 100.461898][ T843] ice_flow_rem_entry_sync.constprop.0+0x1c/0x90 [ice] >> [ 100.468663][ T843] ice_flow_rem_entry+0x3d/0x60 [ice] >> [ 100.473925][ T843] ice_fdir_erase_flow_from_hw.constprop.0+0x9b/0x100 [ice] >> [ 100.481078][ T843] ice_fdir_rem_flow.constprop.0+0x32/0xb0 [ice] >> [ 100.487284][ T843] ice_vsi_manage_fdir+0x7b/0xb0 [ice] >> [ 100.492629][ T843] ice_deinit_features.part.0+0x46/0xc0 [ice] >> [ 100.498571][ T843] ice_remove+0xcf/0x220 [ice] >> [ 100.503222][ T843] pci_device_remove+0x3f/0xb0 >> [ 100.507798][ T843] device_release_driver_internal+0x19d/0x220 >> [ 100.513667][ T843] pci_stop_bus_device+0x6c/0x90 >> [ 100.518417][ T843] pci_stop_and_remove_bus_device+0x12/0x20 >> [ 100.524110][ T843] pciehp_unconfigure_device+0x9f/0x160 >> [ 100.529463][ T843] pciehp_disable_slot+0x69/0x130 >> [ 100.534296][ T843] pciehp_handle_presence_or_link_change+0xfc/0x210 >> [ 100.540678][ T843] pciehp_ist+0x204/0x230 >> [ 100.544824][ T843] ? __pfx_irq_thread_fn+0x10/0x10 >> [ 100.549747][ T843] irq_thread_fn+0x20/0x60 >> [ 100.553978][ T843] irq_thread+0xfb/0x1c0 >> [ 100.558038][ T843] ? __pfx_irq_thread_dtor+0x10/0x10 >> [ 100.563130][ T843] ? __pfx_irq_thread+0x10/0x10 >> [ 100.567791][ T843] kthread+0xe5/0x120 >> [ 100.571594][ T843] ? __pfx_kthread+0x10/0x10 >> [ 100.575997][ T843] ret_from_fork+0x17a/0x1a0 >> [ 100.580403][ T843] ? __pfx_kthread+0x10/0x10 >> [ 100.584805][ T843] ret_from_fork_asm+0x1a/0x30 >> [ 100.589384][ T843] >> [ 100.592237][ T843] Modules linked in: zxmem(OE) einj amdgpu amdxcp >> gpu_sched drm_exec drm_buddy nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 >> nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct >> nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 zhaoxin_cputemp >> nf_defrag_ipv4 zhaoxin_rng snd_hda_codec_hdmi radeon rfkill >> snd_hda_intel snd_intel_dspcfg irdma i2c_algo_bit snd_intel_sdw_acpi >> ip_set i40e drm_suballoc_helper nf_tables drm_ttm_helper pcicfg(POE) >> snd_hda_codec ib_uverbs sunrpc ttm ib_core snd_hda_core >> drm_display_helper snd_hwdep kvm_intel snd_pcm cec vfat fat >> drm_kms_helper snd_timer kvm video ice snd psmouse soundcore wmi >> acpi_cpufreq pcspkr i2c_zhaoxin sg sch_fq_codel drm fuse backlight >> nfnetlink xfs sd_mod t10_pi sm2_zhaoxin_gmi crct10dif_pclmul >> crc32_pclmul ahci crc32c_intel libahci r8169 ghash_clmulni_intel libata >> sha512_ssse3 serio_raw realtek dm_mirror dm_region_hash dm_log >> dm_multipath dm_mod i2c_dev autofs4 >> [ 100.674508][ T843] ---[ end trace 0000000000000000 ]--- >> [ 100.709547][ T843] RIP: 0010:__list_del_entry_valid_or_report+0x7f/0xc0 >> [ 100.716197][ T843] Code: 66 4b a6 e8 c3 43 a9 ff 0f 0b 48 89 fe 48 c7 c7 10 67 4b a6 e8 b2 43 a9 ff 0f 0b 48 89 fe 48 c7 c7 40 67 4b a6 e8 a1 43 a9 ff <0f> 0b 48 89 fe 48 89 ca 48 c7 c7 78 67 4b a6 e8 8d 43 a9 ff 0f 0b >> [ 100.735491][ T843] RSP: 0018:ffffc9000f70fc08 EFLAGS: 00010246 >> [ 100.741367][ T843] RAX: 000000000000004e RBX: ffff8881418b79e8 RCX: 0000000000000000 >> [ 100.749137][ T843] RDX: 0000000000000000 RSI: ffff8897df5a32c0 RDI: ffff8897df5a32c0 >> [ 100.756909][ T843] RBP: ffff8881257f9608 R08: 0000000000000000 R09: 0000000000000003 >> [ 100.764678][ T843] R10: ffffc9000f70fa90 R11: ffffffffa6fee508 R12: 0000000000000000 >> [ 100.772448][ T843] R13: ffff8881257f9608 R14: ffff888116507c28 R15: ffff888116507c28 >> [ 100.780218][ T843] FS: 0000000000000000(0000) GS:ffff8897df580000(0000) knlGS:0000000000000000 >> [ 100.788934][ T843] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >> [ 100.795329][ T843] CR2: 00007f9563bac1c0 CR3: 0000000c4be26004 CR4: 0000000000570ee0 >> [ 100.803099][ T843] PKRU: 55555554 >> [ 100.806483][ T843] Kernel panic - not syncing: Fatal exception >> [ 100.812794][ T843] Kernel Offset: disabled >> [ 100.821613][ T843] pstore: backend (erst) writing error (-28) >> [ 100.827481][ T843] ---[ end Kernel panic - not syncing: Fatal exception ]--- >> >> The reason for this kernel panic is that the ice network card driver >> executed the ice_pci_err_detected() for a longer time than the maximum >> waiting time allowed by pciehp. After that, the pciehp_ist() will >> execute the ice network card driver's ice_remove() process. This results >> in the ice_pci_err_detected() having already deleted the list, while the >> ice_remove() is still attempting to delete a list that no longer exists. > > This is a bug in the ice driver, not in the pciehp or dpc driver. > As such, it is not a good argument to support the extension of the > timeout. I'm not against extending the timeout, but the argument > that it's necessary to avoid occurrence of a bug is not a good one. > > You should first try to unbind the ice driver at runtime to see if > there is a general problem in the unbind code path: > > echo abcd:ef:gh.i > /sys/bus/pci/drivers/shpchp/unbind > > Replace abcd:ef:gh.i with the domain/bus/device/function of the Ethernet > card. The dmesg excerpt you've provided unfortunately does not betray > the card's address. > > Then try to rebind the driver via the "bind" sysfs attribute. > > If this works, the next thing to debug is whether the driver has a > problem with surprise removal. I'm not fully convinced that the > crash you're seeing is caused by concurrent execution of > ice_pci_err_detected() and ice_remove(). When pciehp unbinds the > driver during DPC recovery, the device is likely inaccessible. > It's possible that ice_remove() behaves differently for an > inaccessible device and that may cause the crash instead of the > concurrent execution of ice_pci_err_detected(). > > It would also be good to understand why DPC recovery of the Ethernet > card takes this long. Does it take a long time to come out of reset? > Could the ice driver be changed to allow for faster recovery? > > Thanks, > > Lukas