On Tue, Jan 14, 2020 at 8:35 AM Juerg Haefliger <1857...@bugs.launchpad.net> wrote: > > We certainly want this: > > commit 71c751f2a43fa03fae3cf5f0067ed3001a397013 > Author: Mark Rutland <mark.rutl...@arm.com> > Date: Mon Apr 23 11:41:33 2018 +0100 > > arm64: add sentinel to kpti_safe_list
Agreed, nice catch. Unfortunately, even with that, I'm still seeing the crash (see below). Attached is the backport of the above I used on top of 4.15.0-74.84, in case you find I did it wrong. bestovius login: [ 95.760101] kernel BUG at fs/buffer.c:1240! [ 95.764335] Internal error: Oops - BUG: 0 [#1] SMP [ 95.769171] Modules linked in: nls_iso8859_1 thunderx_edac thunderx_zip cavium_rng_vf shpchp cavium_rng gpio_keys uio_pdrv_genirq ipmi_ssif uio ipmi_devintf ipmi_msghandler 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 nicvf nicpf ast i2c_algo_bit ttm drm_kms_helper syscopyarea sysfillrect aes_ce_blk sysimgblt thunder_bgx fb_sys_fops aes_ce_cipher crc32_ce drm crct10dif_ce ghash_ce sha2_ce sha256_arm64 sha1_ce ahci libahci thunder_xcv i2c_thunderx mdio_thunder thunderx_mmc mdio_cavium aes_neon_bs aes_neon_blk crypto_simd cryptd aes_arm64 [ 95.837496] Process curl (pid: 1848, stack limit = 0x000000004a994c79) [ 95.844086] CPU: 1 PID: 1848 Comm: curl Not tainted 4.15.18 #1 [ 95.849972] Hardware name: Cavium ThunderX CRB/To be filled by O.E.M., BIOS 5.11 12/12/2012 [ 95.858403] pstate: 20400085 (nzCv daIf +PAN -UAO) [ 95.863243] pc : __find_get_block+0x2e8/0x398 [ 95.867640] lr : __getblk_gfp+0x3c/0x2a8 [ 95.871596] sp : ffff00001fe23970 [ 95.874939] x29: ffff00001fe23970 x28: ffff801ff29d8400 [ 95.880302] x27: 000000000000000b x26: 0000000000000010 [ 95.885665] x25: 0000000003880020 x24: 0000000000000001 [ 95.891027] x23: 0000000000000008 x22: ffff801f25098000 [ 95.896390] x21: ffff801f25098000 x20: 0000000003880020 [ 95.901752] x19: 0000000000001000 x18: 0000fffff5966764 [ 95.907115] x17: 0000000000000000 x16: 0000000000000000 [ 95.912477] x15: 000032d49d85d7a0 x14: 002e941340578278 [ 95.917840] x13: 0000fffff5965d60 x12: 0000000000000000 [ 95.923202] x11: ffff000009578c08 x10: 0000000000000040 [ 95.928565] x9 : ffff801f69456ca8 x8 : ffff801f2526ac00 [ 95.933927] x7 : ffff0000083bb9a8 x6 : 0000000000000010 [ 95.939290] x5 : 000000000000001c x4 : 0000000000000100 [ 95.944653] x3 : 0000000000000008 x2 : 0000000000001000 [ 95.950016] x1 : 0000000003880020 x0 : 0000000000000080 [ 95.955378] Call trace: [ 95.957846] __find_get_block+0x2e8/0x398 [ 95.961892] __getblk_gfp+0x3c/0x2a8 [ 95.965502] __ext4_get_inode_loc+0xe4/0x418 [ 95.969810] ext4_reserve_inode_write+0x5c/0xf8 [ 95.974381] ext4_mark_inode_dirty+0x5c/0x228 [ 95.978777] ext4_da_write_end+0x2c4/0x2e8 [ 95.982912] generic_perform_write+0x108/0x1b0 [ 95.987397] __generic_file_write_iter+0x14c/0x1c0 [ 95.992232] ext4_file_write_iter+0x120/0x3d0 [ 95.996629] new_sync_write+0xd8/0x138 [ 96.000411] __vfs_write+0x74/0x80 [ 96.003842] vfs_write+0xac/0x1b0 [ 96.007185] SyS_write+0x74/0xf0 [ 96.012674] el0_svc_naked+0x30/0x34 [ 96.018502] Code: 17ffffe7 a90363b7 a9046bb9 f9002bbb (d4210000) [ 96.026896] ---[ end trace 04e2c614fd4c593c ]--- ** Patch added: "sentinel-backport.patch" https://bugs.launchpad.net/bugs/1857074/+attachment/5320144/+files/sentinel-backport.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1857074 Title: Cavium ThunderX CN88XX Panic : Unknown reason To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1857074/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
