From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org,
Qian Cai <cai@lca.pw>, Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
"H. Peter Anvin" <hpa@zytor.com>,
Alexander Potapenko <glider@google.com>,
Dmitry Vyukov <dvyukov@google.com>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH 4.19 23/30] x86_64: increase stack size for KASAN_EXTRA
Date: Thu, 21 Feb 2019 16:26:42 +0100 [thread overview]
Message-ID: <20190221152642.GA23121@kroah.com> (raw)
In-Reply-To: <953de00c-82df-3ac2-8dd7-a023c511cbb9@virtuozzo.com>
On Thu, Feb 21, 2019 at 06:00:06PM +0300, Andrey Ryabinin wrote:
> On 2/21/19 5:36 PM, Greg Kroah-Hartman wrote:
> > 4.19-stable review patch. If anyone has any objections, please let me know.
> >
>
> Drop it please. It increases kernel stack up to 4-order which is above PAGE_ALLOC_COSTLY_ORDER.
> This changes behavior of the fork() by making it fail with -ENOMEM due of high memory fragmentation.
>
> The patch that removes KASAN_EXTRA (not in Linus's tree yet) would be a better fix for the problem.
Ok, should this also be dropped from 4.20.y?
thanks,
greg k-h
next prev parent reply other threads:[~2019-02-21 15:26 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-21 14:35 [PATCH 4.19 00/30] 4.19.25-stable review Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 01/30] af_packet: fix raw sockets over 6in4 tunnel Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 02/30] dsa: mv88e6xxx: Ensure all pending interrupts are handled prior to exit Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 03/30] mlxsw: __mlxsw_sp_port_headroom_set(): Fix a use of local variable Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 04/30] net: crypto set sk to NULL when af_alg_release Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 05/30] net: Fix for_each_netdev_feature on Big endian Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 06/30] net: fix IPv6 prefix route residue Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 07/30] net: ip6_gre: initialize erspan_ver just for erspan tunnels Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 08/30] net: ipv4: use a dedicated counter for icmp_v4 redirect packets Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 09/30] net: phy: xgmiitorgmii: Support generic PHY status read Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 10/30] net: stmmac: Fix a race in EEE enable callback Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 11/30] net: stmmac: handle endianness in dwmac4_get_timestamp Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 12/30] net: validate untrusted gso packets without csum offload Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 13/30] sky2: Increase D3 delay again Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 14/30] vhost: correctly check the return value of translate_desc() in log_used() Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 15/30] vsock: cope with memory allocation failure at socket creation time Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 16/30] vxlan: test dev->flags & IFF_UP before calling netif_rx() Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 17/30] net: Add header for usage of fls64() Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 18/30] tcp: clear icsk_backoff in tcp_write_queue_purge() Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 19/30] tcp: tcp_v4_err() should be more careful Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 20/30] net: Do not allocate page fragments that are not skb aligned Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 21/30] hwmon: (lm80) Fix missing unlock on error in set_fan_div() Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 22/30] scsi: target/core: Use kmem_cache_free() instead of kfree() Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 23/30] x86_64: increase stack size for KASAN_EXTRA Greg Kroah-Hartman
2019-02-21 15:00 ` Andrey Ryabinin
2019-02-21 15:26 ` Greg Kroah-Hartman [this message]
2019-02-21 15:30 ` Andrey Ryabinin
2019-02-21 16:08 ` Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 24/30] mmc: meson-gx: fix interrupt name Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 25/30] PCI: Fix __initdata issue with "pci=disable_acs_redir" parameter Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 26/30] sunrpc: fix 4 more call sites that were using stack memory with a scatterlist Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 27/30] netfilter: nf_nat_snmp_basic: add missing length checks in ASN.1 cbs Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 28/30] net/x25: do not hold the cpu too long in x25_new_lci() Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 29/30] mISDN: fix a race in dev_expire_timer() Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 30/30] ax25: fix possible use-after-free Greg Kroah-Hartman
2019-02-22 8:14 ` [PATCH 4.19 00/30] 4.19.25-stable review Jon Hunter
2019-02-22 8:24 ` Greg Kroah-Hartman
2019-02-22 9:04 ` Naresh Kamboju
2019-02-22 23:10 ` shuah
2019-02-22 23:31 ` Guenter Roeck
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