On Thu, Apr 25, 2024 at 5:20 PM Changhui Zhong <czhong@xxxxxxxxxx> wrote: > > Hello, > > I hit the kernel panic on recent upstream, please help check it and > let me know if you need any info/testing for it, thanks. > > > repo:https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git > branch:for-next > commit HEAD: 12c12fbada5caa262656a46483167b553036a273 > > reproducer: > # cd /sys/kernel/debug/block && find . -type f -exec grep -aH . {} \; > > dmesg: > [ 29.745943] BUG: kernel NULL pointer dereference, address: 0000000000000000 > [ 29.752906] #PF: supervisor read access in kernel mode > [ 29.758044] #PF: error_code(0x0000) - not-present page > [ 29.763186] PGD 0 P4D 0 > [ 29.765723] Oops: 0000 [#1] PREEMPT SMP NOPTI > [ 29.770085] CPU: 29 PID: 2248 Comm: grep Not tainted 6.9.0-rc4+ #1 > [ 29.776263] Hardware name: Dell Inc. PowerEdge R640/0X45NX, BIOS > 2.19.1 06/04/2023 > [ 29.783830] RIP: 0010:queue_zone_wplugs_show+0x42/0x100 > [ 29.789064] Code: 47 68 48 89 44 24 10 e8 ec cf b7 ff 48 c7 44 24 > 08 00 00 00 00 48 8b 44 24 10 48 8b 4c 24 08 48 8b 80 b8 02 00 00 48 > 8d 04 c8 <4c> 8b 38 4d 85 ff 74 6a 49 8d 7f 24 31 db 48 89 3c 24 e8 37 > 25 6d > [ 29.807810] RSP: 0018:ffffa7e68750bcb8 EFLAGS: 00010202 > [ 29.813035] RAX: 0000000000000000 RBX: ffff8dae04c76528 RCX: 0000000000000000 > [ 29.820169] RDX: ffff8dae1505a0c0 RSI: ffff8dae04c76528 RDI: ffff8dacb76c5fe0 > [ 29.827302] RBP: ffff8dae04c76528 R08: ffffa7e68750bcb0 R09: ffff8daa860cbdb8 > [ 29.834433] R10: ffffa7e68750bd08 R11: ffff8dae0319c000 R12: ffffa7e68750bd98 > [ 29.841567] R13: ffffa7e68750bd70 R14: ffff8dae04c76550 R15: 0000000000000001 > [ 29.848697] FS: 00007f553ea21740(0000) GS:ffff8db1efd00000(0000) > knlGS:0000000000000000 > [ 29.856784] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 29.862532] CR2: 0000000000000000 CR3: 000000048e000003 CR4: 00000000007706f0 > [ 29.869664] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 29.876794] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > [ 29.883928] PKRU: 55555554 > [ 29.886642] Call Trace: > [ 29.889095] <TASK> > [ 29.891201] ? __die+0x20/0x70 > [ 29.894268] ? page_fault_oops+0x75/0x170 > [ 29.898281] ? exc_page_fault+0x64/0x150 > [ 29.902208] ? asm_exc_page_fault+0x22/0x30 > [ 29.906395] ? queue_zone_wplugs_show+0x42/0x100 > [ 29.911012] ? queue_zone_wplugs_show+0x24/0x100 > [ 29.915632] seq_read_iter+0x11d/0x4d0 > [ 29.919383] seq_read+0xfd/0x140 > [ 29.922619] full_proxy_read+0x59/0x80 > [ 29.926379] vfs_read+0xa7/0x340 > [ 29.929611] ? syscall_exit_work+0xff/0x130 > [ 29.933804] ? syscall_exit_to_user_mode+0x78/0x200 > [ 29.938686] ? do_syscall_64+0x87/0x160 > [ 29.942523] ? __count_memcg_events+0x49/0xb0 > [ 29.946882] ksys_read+0x5f/0xe0 > [ 29.950115] do_syscall_64+0x7b/0x160 > [ 29.953783] ? do_user_addr_fault+0x330/0x6b0 > [ 29.958140] ? clear_bhb_loop+0x45/0xa0 > [ 29.961979] ? clear_bhb_loop+0x45/0xa0 > [ 29.965819] ? clear_bhb_loop+0x45/0xa0 > [ 29.969660] entry_SYSCALL_64_after_hwframe+0x76/0x7e > [ 29.974713] RIP: 0033:0x7f553e8fd9b2 > [ 29.978291] Code: c0 e9 b2 fe ff ff 50 48 8d 3d ea 1d 0c 00 e8 c5 > fd 01 00 0f 1f 44 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 > 10 0f 05 <48> 3d 00 f0 ff ff 77 56 c3 0f 1f 44 00 00 48 83 ec 28 48 89 > 54 24 > [ 29.997036] RSP: 002b:00007fff66c83ba8 EFLAGS: 00000246 ORIG_RAX: > 0000000000000000 > [ 30.004601] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f553e8fd9b2 > [ 30.011736] RDX: 0000000000018000 RSI: 000055caa25d0000 RDI: 0000000000000003 > [ 30.018866] RBP: 000055caa25d0000 R08: 0000000000019000 R09: 0000000000000001 > [ 30.026000] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff66c83c70 > [ 30.033134] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000003 > [ 30.040267] </TASK> > [ 30.042457] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 > dns_resolver nfs lockd grace netfs rfkill sunrpc vfat fat dm_multipath > intel_rapl_msr intel_rapl_common intel_uncore_frequency ipmi_ssif > intel_uncore_frequency_common isst_if_common skx_edac nfit libnvdimm > x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm mgag200 > rapl i2c_algo_bit iTCO_wdt drm_shmem_helper iTCO_vendor_support > intel_cstate acpi_ipmi drm_kms_helper ipmi_si dcdbas intel_uncore > mei_me i2c_i801 dell_smbios ipmi_devintf mei dell_wmi_descriptor > wmi_bmof pcspkr i2c_smbus lpc_ich intel_pch_thermal ipmi_msghandler > joydev acpi_power_meter drm fuse xfs libcrc32c sd_mod sg ahci > crct10dif_pclmul nvme libahci crc32_pclmul crc32c_intel bnxt_en > nvme_core libata ghash_clmulni_intel megaraid_sas tg3 t10_pi wmi > dm_mirror dm_region_hash dm_log dm_mod > [ 30.115078] CR2: 0000000000000000 > [ 30.118398] ---[ end trace 0000000000000000 ]--- > [ 30.130544] RIP: 0010:queue_zone_wplugs_show+0x42/0x100 > [ 30.135772] Code: 47 68 48 89 44 24 10 e8 ec cf b7 ff 48 c7 44 24 > 08 00 00 00 00 48 8b 44 24 10 48 8b 4c 24 08 48 8b 80 b8 02 00 00 48 > 8d 04 c8 <4c> 8b 38 4d 85 ff 74 6a 49 8d 7f 24 31 db 48 89 3c 24 e8 37 > 25 6d > [ 30.154518] RSP: 0018:ffffa7e68750bcb8 EFLAGS: 00010202 > [ 30.159743] RAX: 0000000000000000 RBX: ffff8dae04c76528 RCX: 0000000000000000 > [ 30.166875] RDX: ffff8dae1505a0c0 RSI: ffff8dae04c76528 RDI: ffff8dacb76c5fe0 > [ 30.174010] RBP: ffff8dae04c76528 R08: ffffa7e68750bcb0 R09: ffff8daa860cbdb8 > [ 30.181142] R10: ffffa7e68750bd08 R11: ffff8dae0319c000 R12: ffffa7e68750bd98 > [ 30.188274] R13: ffffa7e68750bd70 R14: ffff8dae04c76550 R15: 0000000000000001 > [ 30.195408] FS: 00007f553ea21740(0000) GS:ffff8db1efd00000(0000) > knlGS:0000000000000000 > [ 30.203495] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 30.209239] CR2: 0000000000000000 CR3: 000000048e000003 CR4: 00000000007706f0 > [ 30.216371] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 30.223505] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > [ 30.230636] PKRU: 55555554 > [ 30.233351] Kernel panic - not syncing: Fatal exception > [ 30.238599] Kernel Offset: 0x28200000 from 0xffffffff81000000 > (relocation range: 0xffffffff80000000-0xffffffffbfffffff) > [ 30.257215] ---[ end Kernel panic - not syncing: Fatal exception ]--- > This issue has been fixed by https://lore.kernel.org/linux-block/CAGVVp+UyW8a8MNeet66UWUhgB0+gBWCh=_wbN=18tpbQO6_EKg@xxxxxxxxxxxxxx/T/#t
