Path: csiph.com!weretis.net!feeder9.news.weretis.net!feeder8.news.weretis.net!news.mb-net.net!open-news-network.org!srl.newsdeef.eu!news.corradoroberto.it!gothmog.csi.it!bofh.it!news.nic.it!robomod From: James Addison Newsgroups: linux.debian.bugs.dist,linux.debian.kernel Subject: Bug#1126800: iwlwifi: Microcode SW error detected: NMI_INTERRUPT_WDG Date: Sun, 01 Feb 2026 18:20:01 +0100 Message-ID: X-Original-To: Debian Bug Tracking System X-Mailbox-Line: From debian-bugs-dist-request@lists.debian.org Sun Feb 1 17:13:11 2026 Old-Return-Path: X-Spam-Flag: NO X-Spam-Score: -1.899 Reply-To: James Addison , 1126800@bugs.debian.org Resent-To: debian-bugs-dist@lists.debian.org Resent-Cc: debian-kernel@lists.debian.org X-Debian-Pr-Message: report 1126800 X-Debian-Pr-Package: firmware-iwlwifi X-Debian-Pr-Source: firmware-nonfree Content-Type: multipart/mixed; boundary="===============7970542639380105110==" MIME-Version: 1.0 X-Mailer: reportbug 13.2.0 X-Debian-Message: from BTS X-Mailing-List: archive/latest/1950696 List-ID: List-URL: Approved: robomod@news.nic.it Lines: 124 Organization: linux.* mail to news gateway Sender: robomod@news.nic.it X-Original-Date: Sun, 01 Feb 2026 17:11:22 +0000 X-Original-Message-ID: <176996588289.11370.804862394040497691.reportbug@localhost> Xref: csiph.com linux.debian.bugs.dist:1280435 linux.debian.kernel:91028 This is a multi-part MIME message sent by reportbug. --===============7970542639380105110== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline Package: firmware-iwlwifi Version: 20251111-1 Severity: minor Dear Maintainer, While streaming some of the talks from this year's FOSDEM conference on my ThinkPad X1 Yoga laptop, an error seems to have occurred in the microcode of the Intel Wireless 8260 chipset. The top-level error message (Microcode SW error detected) is the same as currently-open bugreports #700629 and #1026906, but the identifier displayed at the top of the microcode stacktrace (NMI_INTERRUPT_WDG) doesn't appear in those, but does appear in previously-reported, closed bug #934781. Please find the error report and some surrounding context from the output of journalctl attached with this bugreport. Regards, James --===============7970542639380105110== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="iwlwifi-8000C-36.ucode-bugreport.txt" Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: Microcode SW error detected. Restarting 0x2000000. Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: Start IWL Error Log Dump: Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: Transport status: 0x0000004A, valid: 6 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: Loaded firmware version: 36.c8e8e144.0 8000C-36.ucode Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00000034 | NMI_INTERRUPT_WDG Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x000000A3 | trm_hw_status0 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00000000 | trm_hw_status1 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x0002440C | branchlink2 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00039AA2 | interruptlink1 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x000180D8 | interruptlink2 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00000000 | data1 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00000002 | data2 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x07830000 | data3 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0xAF4084ED | beacon time Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x32E6FB16 | tsf low Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x000008F8 | tsf hi Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00000000 | time gp1 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0xEBBE3FDC | time gp2 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00000001 | uCode revision type Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00000024 | uCode version major Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0xC8E8E144 | uCode version minor Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00000201 | hw version Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00489001 | board version Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x0A76001C | hcmd Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0xA6EA2000 | isr0 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x01800000 | isr1 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x08005802 | isr2 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x40417D8F | isr3 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00000000 | isr4 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x0A76001C | last cmd Id Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00000000 | wait_event Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00000054 | l2p_control Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00019C20 | l2p_duration Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x0000000F | l2p_mhvalid Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00000085 | l2p_addr_match Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x0000000D | lmpm_pmg_sel Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x26050711 | timestamp Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00347080 | flow_handler Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: Start IWL Error Log Dump: Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: Transport status: 0x0000004A, valid: 7 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00000070 | NMI_INTERRUPT_LMAC_FATAL Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00000000 | umac branchlink1 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0xC0086B3C | umac branchlink2 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0xC0083D08 | umac interruptlink1 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0xC0083D08 | umac interruptlink2 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00000800 | umac data1 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0xC0083D08 | umac data2 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0xDEADBEEF | umac data3 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00000024 | umac major Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0xC8E8E144 | umac minor Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0xC088628C | frame pointer Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0xC088628C | stack pointer Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x0095014E | last host cmd Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00000000 | isr status reg Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: IML/ROM dump: Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00003836 | IML/ROM error/state Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x00000003 | IML/ROM data1 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: Fseq Registers: Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x92CB3EA3 | FSEQ_ERROR_CODE Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0xD4E2A0C1 | FSEQ_TOP_INIT_VERSION Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x810E2A24 | FSEQ_CNVIO_INIT_VERSION Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x0000A056 | FSEQ_OTP_VERSION Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x7219DA50 | FSEQ_TOP_CONTENT_VERSION Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0xD0BECC4B | FSEQ_ALIVE_TOKEN Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x1F582271 | FSEQ_CNVI_ID Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x9ACF9FF4 | FSEQ_CNVR_ID Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x03000000 | CNVI_AUX_MISC_CHIP Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x0BADCAFE | CNVR_AUX_MISC_CHIP Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x0BADCAFE | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x0BADCAFE | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0xEF0314BB | FSEQ_PREV_CNVIO_INIT_VERSION Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x24F1A8BE | FSEQ_WIFI_FSEQ_VERSION Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0xE2F55CD5 | FSEQ_BT_FSEQ_VERSION Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: 0x709A7ABA | FSEQ_CLASS_TP_VERSION Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: Collecting data: trigger 2 fired. Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: Device error - SW reset Feb 01 15:00:42 localhost kernel: ieee80211 phy0: Hardware restart was requested Feb 01 15:00:42 localhost kernel: wlp4s0: HW problem - can not stop rx aggregation for xx:xx:xx:xx:xx:xx tid 0 Feb 01 15:00:42 localhost kernel: wlp4s0: HW problem - can not stop rx aggregation for xx:xx:xx:xx:xx:xx tid 1 Feb 01 15:00:42 localhost wpa_supplicant[766]: wlp4s0: CTRL-EVENT-REGDOM-CHANGE init=DRIVER type=WORLD Feb 01 15:00:42 localhost kernel: wlp4s0: HW problem - can not stop rx aggregation for xx:xx:xx:xx:xx:xx tid 3 Feb 01 15:00:42 localhost kernel: wlp4s0: HW problem - can not stop rx aggregation for xx:xx:xx:xx:xx:xx tid 4 Feb 01 15:00:42 localhost kernel: wlp4s0: HW problem - can not stop rx aggregation for xx:xx:xx:xx:xx:xx tid 6 Feb 01 15:00:42 localhost kernel: iwlwifi 0000:04:00.0: restart completed --===============7970542639380105110==--