----- Original Message ----- > qemu can make elf vmcore without kdump in kernel. So kernel may not > have "kexec_crash_image" symbol. > > Without this patch, kdump_backup_region_init() stops main_loop with > error. > Queued for crash-7.1.6: https://github.com/crash-utility/crash/commit/7eb61b3e7bfb4380594f12af428b4b1787c78e4c Thanks, Dave > --- > > netdump.c | 13 ++++++++----- > 1 file changed, 8 insertions(+), 5 deletions(-) > > diff -puN netdump.c~check-kexec_crash_image netdump.c > --- crash-64/netdump.c~check-kexec_crash_image 2016-03-29 19:38:08.556253626 > +0900 > +++ crash-64-hirofumi/netdump.c 2016-03-29 19:38:08.557253630 +0900 > @@ -4458,11 +4458,14 @@ kdump_backup_region_init(void) > } else > return; > > - if (!readmem(symbol_value("kexec_crash_image"), KVADDR, > - &kexec_crash_image_p, sizeof(ulong), > - "kexec backup region: kexec_crash_image", > - QUIET|RETURN_ON_ERROR)) > - goto error; > + if (symbol_exists("kexec_crash_image")) { > + if (!readmem(symbol_value("kexec_crash_image"), KVADDR, > + &kexec_crash_image_p, sizeof(ulong), > + "kexec backup region: kexec_crash_image", > + QUIET|RETURN_ON_ERROR)) > + goto error; > + } else > + kexec_crash_image_p = 0; > > if (!kexec_crash_image_p) { > if (CRASHDEBUG(1)) > _ > > -- > OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx> > -- Crash-utility mailing list Crash-utility@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/crash-utility
