Message-ID: <b4cba2d8-ac2d-47ca-a761-f81da6908c17@bonusplay.pl>
Date: Tue, 14 Jan 2025 11:49:36 +0100
From: Bonus <kernel@...usplay.pl>
To: Ajit Khaparde <ajit.khaparde@...adcom.com>,
 Sriharsha Basavapatna <sriharsha.basavapatna@...adcom.com>,
 Somnath Kotur <somnath.kotur@...adcom.com>
Cc: netdev@...r.kernel.org
Subject: Re: be2net: oops due to RCU context switch

Thunderbird managed to mangle my oops trace, but I think this time it should work.

[   17.106889] ------------[ cut here ]------------
[   17.106892] Voluntary context switch within RCU read-side critical section!
[   17.106895] WARNING: CPU: 2 PID: 1276 at kernel/rcu/tree_plugin.h:331 rcu_note_context_switch+0x656/0x6e0
[   17.106899] Modules linked in: cfg80211 rfkill msr xt_conntrack ip6t_rpfilter ipt_rpfilter xt_pkttype xt_LOG nf_log_syslog xt_tcpudp nft_compat nf_tables sch_fq_codel uinput nvidia_drm(PO) nvidia_modeset(PO) nls_iso8859_1 nls_cp437 vfat fat nvidia_uvm(PO) snd_soc_avs snd_soc_hda_codec snd_hda_codec_realtek snd_hda_ext_core snd_hda_codec_generic snd_hda_scodec_component snd_soc_core mei_hdcp snd_hda_codec_hdmi snd_compress intel_rapl_msr ac97_bus iTCO_wdt mei_pxp intel_pmc_bxt snd_pcm_dmaengine watchdog ee1004 snd_hda_intel intel_rapl_common snd_intel_dspcfg snd_intel_sdw_acpi snd_usb_audio mxm_wmi intel_uncore_frequency snd_hda_codec intel_uncore_frequency_common intel_tcc_cooling x86_pkg_temp_thermal intel_powerclamp snd_usbmidi_lib snd_hda_core snd_ump coretemp snd_rawmidi snd_hwdep crct10dif_pclmul snd_seq_device crc32_pclmul polyval_clmulni polyval_generic ghash_clmulni_intel snd_pcm battery e1000e snd_timer drm_ttm_helper rapl mei_me i2c_i801 snd ttm intel_cstate ptp
i2c_mux intel_uncore pps_core be2net i2c_smbus
[   17.106944]  mei mc soundcore fan thermal video tpm_crb backlight wmi tiny_power_button tpm_tis tpm_tis_core intel_pmc_core nvidia(PO) intel_vsec acpi_pad button joydev pmt_telemetry pmt_class edac_core mousedev evdev mac_hid atkbd libps2 serio vivaldi_fmap loop cpufreq_powersave xt_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 br_netfilter veth tun tap macvlan bridge stp llc kvm_intel kvm fuse efi_pstore configfs nfnetlink efivarfs dmi_sysfs ip_tables x_tables autofs4 dm_crypt cbc encrypted_keys trusted asn1_encoder tee tpm rng_core libaescfb ecdh_generic ecc input_leds led_class hid_generic usbhid hid sd_mod ahci libahci libata nvme sha512_ssse3 sha256_ssse3 xhci_pci sha1_ssse3 scsi_mod aesni_intel nvme_core xhci_hcd gf128mul crypto_simd cryptd nvme_auth scsi_common rtc_cmos btrfs blake2b_generic libcrc32c crc32c_generic crc32c_intel xor raid6_pq dm_snapshot dm_bufio dm_mod dax
[   17.106998] CPU: 2 UID: 152 PID: 1276 Comm: systemd-network Tainted: P           O       6.12.8 #1-NixOS
[   17.107001] Tainted: [P]=PROPRIETARY_MODULE, [O]=OOT_MODULE
[   17.107002] Hardware name: Micro-Star International Co., Ltd. MS-7B47/Z370 TOMAHAWK (MS-7B47), BIOS 1.00 09/12/2017
[   17.107003] RIP: 0010:rcu_note_context_switch+0x656/0x6e0
[   17.107005] Code: 00 00 00 0f 85 30 fd ff ff 49 89 8d a8 00 00 00 e9 24 fd ff ff c6 05 a5 b4 e7 01 01 90 48 c7 c7 30 e2 5e b9 e8 fb b3 f1 ff 90 <0f> 0b 90 90 e9 fa f9 ff ff 49 83 bd a0 00 00 00 00 49 8b 85 a8 00
[   17.107007] RSP: 0018:ffffa8d7c053b7d8 EFLAGS: 00010046
[   17.107008] RAX: 0000000000000000 RBX: ffff97d32a448000 RCX: 0000000000000000
[   17.107009] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   17.107010] RBP: ffff97d65eb369c0 R08: 0000000000000000 R09: 0000000000000000
[   17.107011] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[   17.107012] R13: ffff97d32a448000 R14: ffff97d30ea58814 R15: ffff97d301800af0
[   17.107013] FS:  00007f90e82515c0(0000) GS:ffff97d65eb00000(0000) knlGS:0000000000000000
[   17.107015] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.107016] CR2: 0000560b0481c360 CR3: 00000001243a0003 CR4: 00000000003726f0
[   17.107017] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   17.107018] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   17.107019] Call Trace:
[   17.107021]  <TASK>
[   17.107023]  ? __warn+0x89/0x130
[   17.107027]  ? rcu_note_context_switch+0x656/0x6e0
[   17.107029]  ? report_bug+0x172/0x1a0
[   17.107032]  ? handle_bug+0x61/0xb0
[   17.107034]  ? exc_invalid_op+0x17/0x80
[   17.107036]  ? asm_exc_invalid_op+0x1a/0x20
[   17.107040]  ? rcu_note_context_switch+0x656/0x6e0
[   17.107042]  ? rcu_note_context_switch+0x655/0x6e0
[   17.107044]  __schedule+0xca/0x12d0
[   17.107046]  ? get_nohz_timer_target+0x2a/0x140
[   17.107049]  ? timerqueue_add+0x66/0xd0
[   17.107052]  ? hrtimer_start_range_ns+0x258/0x380
[   17.107055]  schedule+0x27/0xf0
[   17.107056]  schedule_hrtimeout_range_clock+0xe2/0x140
[   17.107060]  ? __pfx_hrtimer_wakeup+0x10/0x10
[   17.107063]  ? be_mcc_notify_wait+0x6c/0x150 [be2net]
[   17.107070]  usleep_range_state+0x63/0xa0
[   17.107073]  be_mcc_notify_wait+0xbe/0x150 [be2net]
[   17.107080]  be_cmd_get_hsw_config+0x17c/0x1a0 [be2net]
[   17.107088]  be_ndo_bridge_getlink+0xf0/0x110 [be2net]
[   17.107094]  rtnl_bridge_getlink+0x12a/0x1d0
[   17.107098]  ? __pfx_rtnl_bridge_getlink+0x10/0x10
[   17.107101]  rtnl_dumpit+0x85/0xb0
[   17.107103]  netlink_dump+0x138/0x370
[   17.107108]  __netlink_dump_start+0x1e7/0x2b0
[   17.107111]  ? __pfx_rtnl_bridge_getlink+0x10/0x10
[   17.107113]  rtnetlink_rcv_msg+0x2b8/0x400
[   17.107115]  ? __pfx_rtnl_dumpit+0x10/0x10
[   17.107117]  ? __pfx_rtnl_bridge_getlink+0x10/0x10
[   17.107120]  ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[   17.107122]  netlink_rcv_skb+0x58/0x110
[   17.107125]  netlink_unicast+0x1a3/0x290
[   17.107127]  netlink_sendmsg+0x222/0x4b0
[   17.107129]  __sys_sendto+0x1ee/0x200
[   17.107134]  __x64_sys_sendto+0x24/0x40
[   17.107136]  do_syscall_64+0xb7/0x210
[   17.107138]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   17.107141] RIP: 0033:0x7f90e7d19df7
[   17.107150] Code: 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb 98 0f 1f 00 f3 0f 1e fa 80 3d 75 f2 0d 00 00 41 89 ca 74 30 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 9d 00 00 00 31 d2 31 c9 31 f6 31 ff 45 31
[   17.107151] RSP: 002b:00007ffe3ad3e3e8 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   17.107153] RAX: ffffffffffffffda RBX: 0000560b047eebd0 RCX: 00007f90e7d19df7
[   17.107154] RDX: 0000000000000020 RSI: 0000560b04805bb0 RDI: 0000000000000003
[   17.107155] RBP: 0000560b0481bff0 R08: 00007ffe3ad3e3f0 R09: 0000000000000080
[   17.107156] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe3ad3e4b4
[   17.107157] R13: 00007ffe3ad3e4f0 R14: 0000560ae711c650 R15: 0000560ae71dbc78
[   17.107159]  </TASK>
[   17.107160] ---[ end trace 0000000000000000 ]---

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