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b=P6Wu4WTOlx+W2gUNm1cg1C JA6iZaFUM+Sqzi0M4v4F6y8TMfNuYWS4PxqsaUJ3ti7knc8+GNAegE/4uXDi8Vw7 tAlE82D7dbCePw6GJX9MYluLtUYYRq4rUtWf8Iv72K4Tc6e+JcScqB/5JDMo5Q8q Meese+ze4W13/5laaVr9OXD//NypdY933p/5SzbFVeQt3riCI3EUqi2B9DX3Ge/u xd7hBy3CuNgtvSMvfxpPmtvBARqQ93KttB/2A2Tl38mrTjnp5e/nx+R/HI+64Pc7 r47q3vd73/9aAE9TKXLnOj99+3JjyFJetaASowwbFszRi+Rnq/xUl//2B6L1BC2g == X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduledrjedvgdefudcutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecunecujfgurhepfffhvffukfhfgggtuggjsehgtderre dttdejnecuhfhrohhmpeforghrvghkucforghrtgiihihkohifshhkihdqifpkrhgvtghk ihcuoehmrghrmhgrrhgvkhesihhnvhhishhisghlvghthhhinhhgshhlrggsrdgtohhmqe enucggtffrrghtthgvrhhnpeffkeffudevvddtkefhveelvdfgudehvdeitdduheeugfei jeektdeuhfefveefhfenucffohhmrghinhepphgrthgthhgvfidrohhrghenucfkpheple durdeijedrjeelrdegnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghi lhhfrhhomhepmhgrrhhmrghrvghksehinhhvihhsihgslhgvthhhihhnghhslhgrsgdrtg homh X-ME-Proxy: Date: Wed, 17 Feb 2021 14:48:51 +0100 From: Marek =?utf-8?Q?Marczykowski-G=C3=B3recki?= To: =?utf-8?B?SsO8cmdlbiBHcm/Dnw==?= Cc: xen-devel Subject: Re: Linux PV/PVH domU crash on (guest) resume from suspend Message-ID: References: <0b71a671-592a-53ab-6b4a-1fe15b9eb453@suse.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="Eept/bozI/Ba/6p9" Content-Disposition: inline In-Reply-To: <0b71a671-592a-53ab-6b4a-1fe15b9eb453@suse.com> --Eept/bozI/Ba/6p9 Content-Type: text/plain; protected-headers=v1; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Date: Wed, 17 Feb 2021 14:48:51 +0100 From: Marek =?utf-8?Q?Marczykowski-G=C3=B3recki?= To: =?utf-8?B?SsO8cmdlbiBHcm/Dnw==?= Cc: xen-devel Subject: Re: Linux PV/PVH domU crash on (guest) resume from suspend On Wed, Feb 17, 2021 at 07:51:42AM +0100, J=C3=BCrgen Gro=C3=9F wrote: > On 17.02.21 06:12, Marek Marczykowski-G=C3=B3recki wrote: > > Hi, > >=20 > > I'm observing Linux PV/PVH guest crash when I resume it from sleep. I do > > this with: > >=20 > > virsh -c xen dompmsuspend mem > > virsh -c xen dompmwakeup > >=20 > > But it's possible to trigger it with plain xl too: > >=20 > > xl save -c > >=20 > > The same on HVM works fine. > >=20 > > This is on Xen 4.14.1, and with guest kernel 5.4.90, the same happens > > with 5.4.98. Dom0 kernel is the same, but I'm not sure if that's > > relevant here. I can reliably reproduce it. >=20 > This is already on my list of issues to look at. >=20 > The problem seems to be related to the XSA-332 patches. You could try > the patches I've sent out recently addressing other fallout from XSA-332 > which _might_ fix this issue, too: >=20 > https://patchew.org/Xen/20210211101616.13788-1-jgross@suse.com/ Thanks for the patches. Sadly it doesn't change anything - I get exactly the same crash. I applied that on top of 5.11-rc7 (that's what I had handy). If you think there may be a difference with the final 5.11 or another branch, please let me know. --=20 Best Regards, Marek Marczykowski-G=C3=B3recki Invisible Things Lab --Eept/bozI/Ba/6p9 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEhrpukzGPukRmQqkK24/THMrX1ywFAmAtHsUACgkQ24/THMrX 1yxFhQgAmfd5RKukJUsaQpSaNUrTV/lAylrIb9bSgHpKk+OFOUvQlcVzpADT/eB1 WLTdNHZ0fENjW96HSI3NUZR4YmzOl/2Zw5vV1wiokwhi6eMR3PrLwGqRY7gMdU4f NZf31wQhukgZ/yxzJesCar1EnpoAmfIMZyGx73BDXoRcXlqx5UKf7HIZ6Ta/LIkE WAq1jXXT6RK6O/FjsmYmJaigbqSqCMyymC1JdxBGNCk7gtw6Sh2NOfYbbC/VnC+2 38z6LJVTpjZUTKEkXQYlgYv88PHTFf24SnUwNN/ju6IMPv/cD4lw8qbcPh459RLm rn7DoiUL5VJv+6qIapngzWEMdFqVmw== =Yj3r -----END PGP SIGNATURE----- --Eept/bozI/Ba/6p9--