> On 27. May 2022, at 14:06, Matthias Petermann <[email protected]> wrote: > > Hi Manuel, > > Am 27.05.2022 um 12:14 schrieb Manuel Bouyer: >>> Paginated processes list: >>> >>> https://www.petermann-it.de/tmp/p1.jpg >>> https://www.petermann-it.de/tmp/p2.jpg >>> https://www.petermann-it.de/tmp/p3.jpg >> several processes in fstchg wait, a stack trace of these processes >> (tr/t 0t<pid> or tr/a 0x<struct lwp*> would show theses) would help. >> >> So it looks like a deadlock in the filesystem. What is your storage >> configuration ? >> > > Thanks for your advice - I did another series of screenshots and prepared the > relevant information here: > > https://www.petermann-it.de/tmp/p6.png > > My storage configuration this time is nothing out of the ordinary: > > ``` > wd0 (GPT) > | > '-- dk0 (NAME:root, FFSv2 with log, contains the root filesystem) > '---dk1 (NAME:swap) > '---dk2 (NAME:data, FFSv2 with log, contains VND-Images) > | > '-- net.img (16 GB sparse file image) > '-- net-export.img (500 GB sparse file image) > ``` > > Since you bring up the deadlock / filesystem assumption - I did an additional > test right away. My original test case uses both CPU cores in Dom0. The > modified test boots Dom0 with "dom0_max_vcpus=1 dom0_vcpus_pin" so that only > one core is available. With only one core in the Dom0 at least the VM is > instantiated (meaning the "xl create" command comes back as expected, and the > Dom0 stays responsive for a little while (in contrast to the original test - > I was now able to perform "xl list" and did see the VM. Anyway, Once I try to > "xl console" I did only get a fragment: > > ``` > ganymed$ doas xl console net > [ 1.0000000] cpu_rng: rdrand > [ 1.0000000] entropy: ready > [ 1.0000000] Copyright (c) 1996, 1997, 1998, 1999, > ``` > > At the "1999," the Dom0 became frozen, again. > > Kind regards > Matthias >
Stack trace of thread vnconfig (1239) and from ddb "call fstrans_dump" should give even more details. -- J. Hannken-Illjes - [email protected]
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