Re: [Crash-utility] crash does not work with last fedora kernels?

在 2021年04月26日 19:17, crash-utility-request(a)redhat.com 写道: > Message: 3 > Date: Mon, 26 Apr 2021 11:27:40 +0300 > From: Vasily Averin <vvs(a)virtuozzo.com&gt; > To: crash-utility(a)redhat.com > Subject: [Crash-utility] crash does not work with last fedora kernels? > Message-ID: <8f8782a9-3da6-5d3c-c509-8b8ec8a30957(a)virtuozzo.com&gt; > Content-Type: text/plain; charset=utf-8 > > It looks like Fedora kernels uses gcc11 and generates debuginfo in DWARF 5 format. > > [root@localhost ~]# rpm -q crash > crash-7.2.9-5.fc35.x86_64 > [root@localhost ~]# uname -a > Linux localhost.localdomain 5.11.12-300.fc34.x86_64 #1 SMP Wed Apr 7 16:31:13 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux > > > [root@localhost ~]# crash -1 > Dwarf Error: wrong version in compilation unit header (is 5, should be 2, 3, or 4) [in module /usr/lib/debug/usr/lib/modules/5.11.12-300.fc34.x86_64/vmlinux] > crash: gdb_session_init: pulling in debug data by accessing init_mm.mmap > Dwarf Error: wrong version in compilation unit header (is 5, should be 2, 3, or 4) [in module /usr/lib/debug/usr/lib/modules/5.11.12-300.fc34.x86_64/vmlinux] > > crash: /usr/lib/debug/lib/modules/5.11.12-300.fc34.x86_64/vmlinux: no debugging data available > > [root@localhost ~]# ls -al /usr/lib/debug/lib/modules/5.11.12-300.fc34.x86_64/vmlinux > -rwxr-xr-x. 1 root root 679679112 Apr 7 20:14 /usr/lib/debug/lib/modules/5.11.12-300.fc34.x86_64/vmlinux > [root@localhost ~]# rpm -qf /usr/lib/debug/lib/modules/5.11.12-300.fc34.x86_64/vmlinux > kernel-debuginfo-5.11.12-300.fc34.x86_64 > > NB: last fc35 does not work too. > Thank you for reporting this issue, Vasily. The DWARF-5 caused this failure. I will have a look and try to handle this issue later. Thanks. Lianbo