Date: Tue, 9 Mar 2021 11:24:53 +0200 From: Andriy Gapon <avg@FreeBSD.org> To: Yoshihiro Ota <ota@j.email.ne.jp>, stable@freebsd.org Subject: Re: kldload zfs spins the system after upgrading from 12.2 to 13-BETA Message-ID: <a6e7fd23-34b4-19bb-a57c-034a8abc3433@FreeBSD.org> In-Reply-To: <20210307222441.02755e7396cd329edd15df15@j.email.ne.jp> References: <20210306130913.dae1fb546e68bcaec882cdbe@j.email.ne.jp> <9f9db150-ee5d-e74e-7f24-74d1fa687a48@FreeBSD.org> <20210307222441.02755e7396cd329edd15df15@j.email.ne.jp>
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On 08/03/2021 05:24, Yoshihiro Ota wrote: > On Sun, 7 Mar 2021 00:09:33 +0200 > Andriy Gapon <avg@FreeBSD.org> wrote: > >> On 06/03/2021 20:09, Yoshihiro Ota wrote: >>> Hi all, >>> >>> I'm upgrading fron 12.2-RELEASE to 13-BETA/RC one by one. >>> >>> After upgrading one in VMWare, 'zfs mount -a' hangs the system. >>> I don't have boottime zfs mount on nor don't have zfsroot. >>> I just simply ran install world/kernel and mergemaster. >> >> Please use procstat -kk to capture a kernel stack trace of the hung process. > > Actually, spining was 'kldload zfs'. > Console doesn't response but ping and sshd sessions still work. > procstat output is below. > In addition, this doesn't happen to systems that I've been following 13-CURRENT > but rather happen only wiht a system upgraded from 12.2-RELEASE to 13-RC. > > > # procstat -kk 1049 > PID TID COMM TDNAME KSTACK > 1049 100215 kldload - spa_init+0xc6 zfs_kmod_init+0x1a zfs_modevent+0x34 module_register_init+0x8c linker_load_module+0xaab kern_kldload+0xc1 sys_kldload+0x50 syscall+0x17d g_ctx+0xe280bf29 > If you could use kgdb to find out what source code line spa_init+0xc6 corresponds to that may help to see what's going on. -- Andriy Gapon
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