From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C8C6560DE6; Wed, 24 Jan 2024 11:59:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.135.223.130 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706097598; cv=none; b=PwrEk+Cvoo0h8zfgpx1R97m014CLJ/CvXM6t4zSPGJbd9KXKJX/6Cu21pHPGl6cDmJitvaAVTw+BXn5bnTJXgVmJnqsp8bGWSBC7qtLvoZl0n2SVJUICjF3Xi6xAEiYMKzrQQYZgjniLp2LqJvhR1YGbS5wWbbeW/fAztjGoHMk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706097598; c=relaxed/simple; bh=JvuIjypDvkkdN9ibt0BBKV8d8snZJ5FLk81yKrdEgSI=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=dUofORVlBQVK3t8pJ+tbzNguJhowbq9wDrg3hyE943he3LJ7obZ8vEGhtB4Ct8FpWofvSmQDBCf5IqXu7Ab4/KUV6eusr0RrjpPiPnVBDMHnZXetKDljxJuUWqf5QWE4ihnwearsd0qAAUiQ92cLaH84ouK7LDsXfwQHI3IJ7VI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de; spf=pass smtp.mailfrom=suse.de; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b=rABzFyZf; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b=eDXqHNek; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b=rABzFyZf; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b=eDXqHNek; arc=none smtp.client-ip=195.135.223.130 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=suse.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="rABzFyZf"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="eDXqHNek"; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="rABzFyZf"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="eDXqHNek" Received: from hawking.nue2.suse.org (unknown [10.168.4.11]) by smtp-out1.suse.de (Postfix) with ESMTP id 0F7CC222F1; Wed, 24 Jan 2024 11:59:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1706097595; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=ZZVqt4zJTdAbKIcvjcw57N6juLTvcK2zWsqCYdTEkzE=; b=rABzFyZfdgfGTIN6EqHqjzCwkFbrZGeYaR23huV2qj1Y1POshzhbj2fcHtpQiUOa3eEzwK DFb1i4OKJBR2vBJeiGOBztSPd+CpmsP9Duf8DCYe2acUDT89VCLKzA2odd8Cm0eGjYOwf3 8etjhPdCq56aTIeWCJmvV0pnAsGV5g8= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1706097595; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=ZZVqt4zJTdAbKIcvjcw57N6juLTvcK2zWsqCYdTEkzE=; b=eDXqHNek1XSv/H1vmu8SrDWDhmtIaJ4kuylg7jvmq0lh8t75j3VboHCzSfgG6yC2Kg8/TF 6CgGhucIQjkbrICQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1706097595; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=ZZVqt4zJTdAbKIcvjcw57N6juLTvcK2zWsqCYdTEkzE=; b=rABzFyZfdgfGTIN6EqHqjzCwkFbrZGeYaR23huV2qj1Y1POshzhbj2fcHtpQiUOa3eEzwK DFb1i4OKJBR2vBJeiGOBztSPd+CpmsP9Duf8DCYe2acUDT89VCLKzA2odd8Cm0eGjYOwf3 8etjhPdCq56aTIeWCJmvV0pnAsGV5g8= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1706097595; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=ZZVqt4zJTdAbKIcvjcw57N6juLTvcK2zWsqCYdTEkzE=; b=eDXqHNek1XSv/H1vmu8SrDWDhmtIaJ4kuylg7jvmq0lh8t75j3VboHCzSfgG6yC2Kg8/TF 6CgGhucIQjkbrICQ== Received: by hawking.nue2.suse.org (Postfix, from userid 17005) id E7C9E4A04B3; Wed, 24 Jan 2024 12:59:54 +0100 (CET) From: Andreas Schwab To: Xi Ruoyao Cc: linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, Jiaxun Yang , Thomas Bogendoerfer , libc-alpha@sourceware.org Subject: Re: Strange EFAULT on mips64el returned by syscall when another thread is forking In-Reply-To: <75e9fd7b08562ad9b456a5bdaacb7cc220311cc9.camel@xry111.site> (Xi Ruoyao's message of "Wed, 24 Jan 2024 18:42:30 +0800") References: <75e9fd7b08562ad9b456a5bdaacb7cc220311cc9.camel@xry111.site> X-Yow: ...It's REAL ROUND.. And it's got a POINTY PART right in the MIDDLE!! The shape is SMOOTH.. ..And COLD.. It feels very COMFORTABLE on my CHEEK.. I'm getting EMOTIONAL.. Date: Wed, 24 Jan 2024 12:59:54 +0100 Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain Authentication-Results: smtp-out1.suse.de; none X-Spam-Level: X-Spam-Score: -1.42 X-Spamd-Result: default: False [-1.42 / 50.00]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; RCPT_COUNT_FIVE(0.00)[6]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.01)[-0.038]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:email]; FUZZY_BLOCKED(0.00)[rspamd.com]; RCVD_COUNT_ZERO(0.00)[0]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; MID_RHS_MATCH_FROM(0.00)[]; BAYES_HAM(-0.31)[75.41%] X-Spam-Flag: NO On Jan 24 2024, Xi Ruoyao wrote: > Now I'm suspecting this might be a kernel bug. Any pointer to further > triage? Is this a regression? -- Andreas Schwab, SUSE Labs, schwab@suse.de GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different."