Verification: ubuntu@bionic:~$ sudo kexec -p /boot/vmlinuz-`uname -r` --initrd=/boot/initrd.img-`uname -r` --reuse-cmdline ubuntu@bionic:~$ echo 1 | sudo tee /proc/sys/kernel/sysrq 1 ubuntu@bionic:~$ echo c | sudo tee /proc/sysrq-trigger c [ 164.962517] sysrq: SysRq : Trigger a crash [ 164.968259] Internal error: Accessing user space memory outside uaccess.h routines: 96000044 [#1] SMP [ 164.980205] Modules linked in: isofs nls_iso8859_1 sch_fq_codel ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear virtio_blk virtio_net aes_neon_bs aes_neon_blk crypto_simd cryptd aes_arm64 [ 165.027333] Process tee (pid: 995, stack limit = 0x (ptrval)) [ 165.035125] CPU: 0 PID: 995 Comm: tee Not tainted 4.15.0-70-generic #79-Ubuntu [ 165.043884] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015 [ 165.052153] pstate: 00400005 (nzcv daif +PAN -UAO) [ 165.057891] pc : sysrq_handle_crash+0x24/0x30 [ 165.063361] lr : __handle_sysrq+0xbc/0x1c0 [ 165.068316] sp : ffff00000b993d50 [ 165.072308] x29: ffff00000b993d50 x28: ffff800173b73c00 [ 165.078722] x27: ffff000008b42000 x26: 0000000000000040 [ 165.085075] x25: 0000000000000124 x24: ffff0000095ce000 [ 165.091453] x23: 0000000000000007 x22: 0000000000000002 [ 165.097766] x21: 0000000000000063 x20: ffff000009530000 [ 165.104181] x19: ffff0000095cea80 x18: ffffffffffffffff [ 165.110614] x17: 0000000000000000 x16: 0000000000000000 [ 165.117007] x15: ffff000009508c08 x14: ffff0000896b6ce7 [ 165.123376] x13: ffff0000096b6cf5 x12: ffff000009530000 [ 165.129697] x11: ffff000009509660 x10: ffff000008715e80 [ 165.136172] x9 : 00000000ffffffd0 x8 : 0000000000000017 [ 165.142496] x7 : 53203a7172737973 x6 : ffff80017fdce2e8 [ 165.148990] x5 : ffff80017fdce2e8 x4 : 0000000000000000 [ 165.155352] x3 : ffff80017fdd66c8 x2 : cc0b9440e8d0c900 [ 165.161663] x1 : 0000000000000000 x0 : 0000000000000001 [ 165.168036] Call trace: [ 165.171053] sysrq_handle_crash+0x24/0x30 [ 165.175855] __handle_sysrq+0xbc/0x1c0 [ 165.180378] write_sysrq_trigger+0xb8/0x120 [ 165.185223] proc_reg_write+0x80/0xc0 [ 165.189608] __vfs_write+0x48/0x80 [ 165.193883] vfs_write+0xac/0x1b0 [ 165.197962] SyS_write+0x74/0xf0 [ 165.201976] el0_svc_naked+0x30/0x34 [ 165.206719] Code: 52800020 b90ca020 d5033e9f d2800001 (39000020) [ 165.252678] Starting crashdump kernel... [ 165.257367] Bye! [ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x500f0000] [ 0.000000] Linux version 4.15.0-70-generic (buildd@bos02-arm64-021) (gcc version 7.4.0 (Ubuntu/Linaro 7.4.0-1ubuntu1~18.04.1)) #79-Ubuntu SMP Tue Nov 12 10:36:10 UTC 2019 (Ubuntu 4.15.0-70.79-generic 4.15.18) [ 0.000000] efi: Getting EFI parameters from FDT: [ 0.000000] efi: EFI v2.70 by EDK II ...
** Tags removed: verification-needed ** Tags added: verification-done ** Tags removed: verification-needed-bionic ** Tags added: verification-done-bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851190 Title: Ubuntu 18.04: kexec-tool shows "kexec: elfcorehdr doesn't fit cells- size" if crashkernel reserved beyond 4GB To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851190/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
