From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-181.mta1.migadu.com (out-181.mta1.migadu.com [95.215.58.181]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E764F1FBC8C for ; Thu, 15 May 2025 19:04:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.181 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747335870; cv=none; b=cEBd+mBviVFCM0aosxhlHy2Qjv3yleH2z3mj2S+n04h0OpVHmvHnV2l7Vyd9SrRlrlT06YVI7/5qtKxRV6ELTT16Y5fb9wJO/z9ABKwgNu3lXp/VOPGx6oTPCsZIIrIZZYMc/WGnzPnnZGPngvM8nR1mOUBNBaCkfvzj4FIipiE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747335870; c=relaxed/simple; bh=2TFP4a/Qyyyjuub6ARU6zQrB5XmPSylzhP7ms0VvTec=; h=MIME-Version:Date:Content-Type:From:Message-ID:Subject:To:Cc; b=uFSP92uwg5nYByRKW8riPuQ96QJGtk0ixQ/a+6J1IpIYTzk1sDc50ZRUnZHhSwN3PRrDjzhG2jwtysEt4MEvGuIn5XX8cr4Uyb+3aM93zsTHpaccedeR8iz9eGDvLtt5Pg0zgJzvOIdIN1hN/yu/J/iDEPa8RvIYopeduq2rHyg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=N/8GmiUT; arc=none smtp.client-ip=95.215.58.181 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="N/8GmiUT" Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1747335864; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=3xVcqiJPyPsrTbmfK2bOp+gjw4dxsJLuhhBcDUWNfHE=; b=N/8GmiUTbk9sX8xltdIbbU+mKNJ+liSq/cp0LIdoLtuVHg6bwYLfG7R4/6hLjwqlMfYd9C b84lVzCCksnINi65Q1VCuLbbX///KEo/s4+SpkIuYGtDV1mhA33pawuFH30OzFW4Gwhs3u vKmdoHqephCDU4xGI8ySbQhxDUCYgvk= Date: Thu, 15 May 2025 19:04:20 +0000 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: "Ihor Solodrai" Message-ID: <4f3768be36e0298be4ceebd4fdd3e96dd4fbdc04@linux.dev> TLS-Required: No Subject: [bug?] s390: kernel panic on specification exception: 0006 To: linux-s390@vger.kernel.org Cc: linux-kernel@vger.kernel.org, bpf@vger.kernel.org X-Migadu-Flow: FLOW_OUT Hi everyone. Stumbled on the following while testing unrelated changes to BPF CI scrip= ts: #353 select_reuseport:OK specification exception: 0006 ilc:2 [#1]SMP Modules linked in: bpf_testmod(OE) [last unloaded: bpf_test_modorder_= x(OE)] CPU: 0 UID: 0 PID: 108 Comm: new_name Tainted: G OE 6= .15.0-rc4-g169491540638-dirty #1 NONE Tainted: [O]=3DOOT_MODULE, [E]=3DUNSIGNED_MODULE Hardware name: IBM 8561 LT1 400 (KVM/Linux) Krnl PSW : 0404e00180000000 000001e43ac595e4 (hrtimer_interrupt+0x4/0= x2a0) R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:3 CC:2 PM:0 RI:0 EA= :3 Krnl GPRS: 7fffffffffffffff 000001e43ac595e0 00000000fff8f200 000001e= 43c52a0c0 00000164c50740d8 0000000000000000 0000000000000000 0000000= 000000000 0000000000000000 0000000000000000 000001643afabe00 0000000= 000000000 000003ff9fbadf98 000001e43b747550 000001e43ab12774 0000000= 0fffdfe68 Krnl Code:#000001e43ac595e0: 67756573 mxd %f7,1395(%r5,%r6) >000001e43ac595e4: 743d696e unknown 000001e43ac595e8: 73303031 unknown 000001e43ac595ec: 61652c64 unknown 000001e43ac595f0: 65627567 unknown 000001e43ac595f4: 2d74 ddr %f7,%f4 000001e43ac595f6: 68726561 ld %f7,1377(%r2,%r6) 000001e43ac595fa: 64733d6f unknown Call Trace: [<000001e43ac595e4>] hrtimer_interrupt+0x4/0x2a0 [<000001e43ab128ca>] do_irq_async+0x5a/0x78 [<000001e43b65f694>] do_ext_irq+0xac/0x168 [<000001e43b66ae90>] ext_int_handler+0xc8/0xf8 Last Breaking-Event-Address: [<000001e43ab08a9e>] clock_comparator_work+0x2e/0x30 Kernel panic - not syncing: Fatal exception in interrupt This is on the current tip of bpf-next (9325d53fe9ad). Job: https://github.com/kernel-patches/vmtest/actions/runs/15051985809/jo= b/42309244372 You can download full logs from there. It only happened once so far, didn't repeat on restart.