Focal passes autotest stress-ng tests: 14:06:30 INFO | Summary: 14:06:30 INFO | Stressors run: 191 14:06:30 INFO | Skipped: 1, binderfs 14:06:30 INFO | Failed: 0, 14:06:30 INFO | Oopsed: 0, 14:06:30 INFO | Oomed: 0, 14:06:30 INFO | Passed: 190, access af-alg affinity aio aiol bad-altstack bigheap branch brk cache cap chattr chdir chmod chown chroot clock close context cpu crypt cyclic daemon dccp dentry dev dev-shm dir dirdeep dnotify dup dynlib enosys env epoll eventfd fallocate fanotify fault fcntl fiemap fifo file-ioctl filename flock fork fp-error fstat full funcret futex get getdent getrandom handle hdd hrtimers icache icmp-flood inode-flags inotify io iomix ioprio ipsec-mb itimer judy key kill klog lease link locka lockbus lockf lockofd loop madvise malloc mcontend membarrier memfd memhotplug memrate memthrash mergesort mincore mknod mlock mmap mmapaddr mmapfixed mmapfork mmapmany mq mremap msg msync netdev netlink-proc netlink-task nice null open personality physpage pidfd pipe pipeherd pkey poll prctl procfs pthread ptrace pty radixsort ramfs rawdev rawsock readahead reboot rename revio rlimit rmap rtc schedpolicy sctp seal seccomp seek sem sem-sysv sendfile set shellsort shm shm-sysv sigfd sigfpe sigio sigpending sigpipe sigq sigrt sigsegv sigsuspend skiplist sleep sock sockabuse sockdiag sockmany softlockup splice stackmmap stream swap switch symlink sync-file sysbadaddr sysfs tee timer timerfd tlb-shootdown tmpfs tree tsearch tun udp udp-flood unshare urandom userfaultfd utime vdso vfork vm vm-addr vm-rw vm-segv vm-splice wait x86syscall yield zero zombie 14:06:30 INFO | Badret: 0, 14:06:30 INFO | 14:06:30 INFO | Tests took 972 seconds to run
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1866772 Title: Sys oopsed with sysfs test in ubuntu_stress_smoke_test on X-hwe ARM64 Status in Stress-ng: New Status in ubuntu-kernel-tests: In Progress Status in linux package in Ubuntu: Fix Released Status in linux source package in Bionic: Fix Committed Status in linux source package in Eoan: Fix Committed Status in linux source package in Focal: Fix Released Bug description: == SRU Request [ BIONIC, EOAN, FOCAL ] == Reading /sys/firmware/acpi/tables/data/BERT as root at at odd byte offset will cause an oops. This is because the source address is I/O mapped and this needs to be read with an I/O memcpy rather than an memcpy. == Fix == The fix is upstream (linux-next) commit that will land in 5.7, the backport to bionic, eoan and focal is just a minor context wiggle. commit 08c07cefb3042a55bc9f8243814b504d5eff93f3 Author: Colin Ian King <[email protected]> Date: Thu Mar 12 11:13:45 2020 +0000 ACPI: sysfs: copy ACPI data using io memory copying == Test == Running on hotdog with the reproducer below (run as root): #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <unistd.h> #include <errno.h> #include <stdio.h> #include <string.h> int main(void) { int fd; char buffer[3]; ssize_t n; fd = open("/sys/firmware/acpi/tables/data/BERT", O_RDONLY); if (fd < 0) { fprintf(stderr, "open failed: %d (%s)\n", errno, strerror(errno)); return -1; } do { n = read(fd, buffer, sizeof(buffer)); } while (n > 0); return 0; } Without the fix it will oops. With the fix it works OK. == Regession Potential == This only affects the reading of the ACPI BERT table from /sys as root so it is limited in scope to just a very narrow use case. Normally the BERT table is just handled by the kernel, so access to this table is just for debugging purposes. ----------------------- Issue found on new ARM64 node "hotdog" 4.15.0-91.92~16.04.1 Failed 2 of 2 attempts. Test suite HEAD SHA1: 3f43e81 sysfs STARTING sysfs RETURNED 0 sysfs FAILED (kernel oopsed) [ 1075.760640] Unable to handle kernel paging request at virtual address ffff00004a70072a [ 1075.763319] Unable to handle kernel paging request at virtual address ffff00004a70e4ba [ 1075.768563] Mem abort info: [ 1075.768566] ESR = 0x96000021 [ 1075.768568] Exception class = DABT (current EL), IL = 32 bits [ 1075.768569] SET = 0, FnV = 0 [ 1075.768570] EA = 0, S1PTW = 0 [ 1075.768571] Data abort info: [ 1075.768577] ISV = 0, ISS = 0x00000021 [ 1075.776489] Mem abort info: [ 1075.776491] ESR = 0x96000021 [ 1075.776493] Exception class = DABT (current EL), IL = 32 bits [ 1075.776494] SET = 0, FnV = 0 [ 1075.776495] EA = 0, S1PTW = 0 [ 1075.776496] Data abort info: [ 1075.776500] ISV = 0, ISS = 0x00000021 [ 1075.779284] CM = 0, WnR = 0 [ 1075.779288] swapper pgtable: 4k pages, 48-bit VAs, pgd = 00000000facfed4f [ 1075.779290] [ffff00004a70072a] *pgd=000000bffcffe003, *pud=0000009f6122c003, *pmd=000000bf5adf4003, *pte=0068000080280703 [ 1075.782342] CM = 0, WnR = 0 [ 1075.782346] swapper pgtable: 4k pages, 48-bit VAs, pgd = 00000000facfed4f [ 1075.782352] [ffff00004a70e4ba] *pgd=000000bffcffe003, *pud=0000009f6122c003, *pmd=000000bf5adf4003, *pte=006800008028e703 [ 1075.788262] Internal error: Oops: 96000021 [#2] SMP [ 1075.788269] Modules linked in: unix_diag binfmt_misc snd_seq snd_seq_device snd_timer snd soundcore userio vfio_iommu_type1 vfio hci_vhci bluetooth ecdh_generic uhid cuse vhost_vsock vmw_vsock_virtio_transport_common vhost_net vhost vsock tap dccp_ipv4 dccp ipx p8023 atm psnap p8022 llc algif_rng algif_aead anubis fcrypt khazad seed tea md4 michael_mic poly1305_generic rmd128 rmd160 rmd256 rmd320 sha3_generic sm3_generic tgr192 wp512 algif_hash chacha20_neon chacha20_generic blowfish_generic blowfish_common cast5_generic des_generic salsa20_generic camellia_generic cast6_generic cast_common serpent_generic twofish_generic twofish_common algif_skcipher af_alg nls_iso8859_1 ipmi_ssif ipmi_devintf joydev input_leds ipmi_msghandler shpchp i2c_xlp9xx(+) thunderx2_pmu ib_iser rdma_cm iw_cm ib_cm ib_core [ 1075.942470] iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi 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 hid_generic usbhid hid uas usb_storage aes_ce_blk aes_ce_cipher crc32_ce qede ast i2c_algo_bit crct10dif_ce ptp ghash_ce ttm drm_kms_helper sha2_ce pps_core syscopyarea sysfillrect sysimgblt fb_sys_fops sha256_arm64 sha1_ce mpt3sas qed drm raid_class scsi_transport_sas ahci libahci gpio_xlp aes_neon_bs aes_neon_blk crypto_simd cryptd aes_arm64 [ 1075.991997] Process stress-ng-sysfs (pid: 108395, stack limit = 0x000000009cb607b8) [ 1075.999643] CPU: 100 PID: 108395 Comm: stress-ng-sysfs Tainted: G D 4.15.0-91-generic #92~16.04.1-Ubuntu [ 1076.010324] Hardware name: To be filled by O.E.M. Saber/Saber, BIOS 0ACKL027 07/01/2019 [ 1076.018314] pstate: 80400009 (Nzcv daif +PAN -UAO) [ 1076.023096] pc : __memcpy+0x84/0x180 [ 1076.026663] lr : memory_read_from_buffer+0x64/0x88 [ 1076.031441] sp : ffff00003ea2bd10 [ 1076.034743] x29: ffff00003ea2bd10 x28: ffff80be4d85cb00 [ 1076.040042] x27: ffff000008b42000 x26: 000000000000003f [ 1076.045342] x25: 0000000000000124 x24: ffff00004a700000 [ 1076.050643] x23: ffff809e3a7e8500 x22: 000000000000000a [ 1076.055942] x21: ffff00003ea2bd88 x20: 000000000000000a [ 1076.061240] x19: 0000000000000734 x18: 0000000000000014 [ 1076.066540] x17: 0000ffffaf4e1a58 x16: ffff0000082e8e28 [ 1076.071839] x15: 00002d88734750e0 x14: 00181a0596c27059 [ 1076.077138] x13: 00000003e8000000 x12: 0000000000000018 [ 1076.082436] x11: 000000000006372e x10: 000000005e66c174 [ 1076.087735] x9 : 003b9aca00000000 x8 : 000000000000003f [ 1076.093034] x7 : ffff000008645490 x6 : ffff809e3a7e8500 [ 1076.098333] x5 : 000000000000000a x4 : 0000000000010000 [ 1076.103633] x3 : ffff00004a700000 x2 : 000000000000000a [ 1076.108932] x1 : ffff00004a70072a x0 : ffff809e3a7e8500 [ 1076.114231] Call trace: [ 1076.116668] __memcpy+0x84/0x180 [ 1076.119887] acpi_data_show+0x54/0x80 [ 1076.123541] sysfs_kf_bin_read+0x6c/0xa8 [ 1076.127451] kernfs_fop_read+0xa4/0x1e0 [ 1076.131274] __vfs_read+0x48/0x90 [ 1076.134577] vfs_read+0x94/0x150 [ 1076.137792] SyS_read+0x74/0xf0 [ 1076.140923] el0_svc_naked+0x30/0x34 [ 1076.144487] Code: a88120c7 a8c12027 a88120c7 36180062 (f8408423) [ 1076.150570] ---[ end trace 496ae41e9716bef2 ]--- [ 1076.155180] Internal error: Oops: 96000021 [#3] SMP [ 1076.160054] Modules linked in: unix_diag binfmt_misc snd_seq snd_seq_device snd_timer snd soundcore userio vfio_iommu_type1 vfio hci_vhci bluetooth ecdh_generic uhid cuse vhost_vsock vmw_vsock_virtio_transport_common vhost_net vhost vsock tap dccp_ipv4 dccp ipx p8023 atm psnap p8022 llc algif_rng algif_aead anubis fcrypt khazad seed tea md4 michael_mic poly1305_generic rmd128 rmd160 rmd256 rmd320 sha3_generic sm3_generic tgr192 wp512 algif_hash chacha20_neon chacha20_generic blowfish_generic blowfish_common cast5_generic des_generic salsa20_generic camellia_generic cast6_generic cast_common serpent_generic twofish_generic twofish_common algif_skcipher af_alg nls_iso8859_1 ipmi_ssif ipmi_devintf joydev input_leds ipmi_msghandler shpchp i2c_xlp9xx(+) thunderx2_pmu ib_iser rdma_cm iw_cm ib_cm ib_core [ 1076.230688] iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi 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 hid_generic usbhid hid uas usb_storage aes_ce_blk aes_ce_cipher crc32_ce qede ast i2c_algo_bit crct10dif_ce ptp ghash_ce ttm drm_kms_helper sha2_ce pps_core syscopyarea sysfillrect sysimgblt fb_sys_fops sha256_arm64 sha1_ce mpt3sas qed drm raid_class scsi_transport_sas ahci libahci gpio_xlp aes_neon_bs aes_neon_blk crypto_simd cryptd aes_arm64 [ 1076.280211] Process stress-ng-sysfs (pid: 108405, stack limit = 0x00000000081889d7) [ 1076.287856] CPU: 155 PID: 108405 Comm: stress-ng-sysfs Tainted: G D 4.15.0-91-generic #92~16.04.1-Ubuntu [ 1076.298538] Hardware name: To be filled by O.E.M. Saber/Saber, BIOS 0ACKL027 07/01/2019 [ 1076.306530] pstate: 80400009 (Nzcv daif +PAN -UAO) [ 1076.311319] pc : __memcpy+0x84/0x180 [ 1076.314890] lr : memory_read_from_buffer+0x64/0x88 [ 1076.319667] sp : ffff00003eea3d10 [ 1076.322969] x29: ffff00003eea3d10 x28: ffff80be4d858000 [ 1076.328269] x27: ffff000008b42000 x26: 000000000000003f [ 1076.333568] x25: 0000000000000124 x24: ffff00004a700000 [ 1076.338868] x23: ffff80bec6fa7400 x22: 000000000000000d [ 1076.344167] x21: ffff00003eea3d88 x20: 000000000000000d [ 1076.349467] x19: 000000000000e4c7 x18: 0000000000000014 [ 1076.354767] x17: 0000ffffaf4e1a58 x16: ffff0000082e8e28 [ 1076.360068] x15: 0000566c10765956 x14: 00181a0596c27059 [ 1076.365368] x13: 00000003e8000000 x12: 0000000000000018 [ 1076.370667] x11: 00000000000641a6 x10: 000000005e66c174 [ 1076.375966] x9 : 003b9aca00000000 x8 : 000000000000003f [ 1076.381265] x7 : ffff000008645490 x6 : ffff80bec6fa7400 [ 1076.386564] x5 : 000000000000000d x4 : 0000000000010000 [ 1076.391864] x3 : ffff00004a700000 x2 : 000000000000000d [ 1076.397163] x1 : ffff00004a70e4ba x0 : ffff80bec6fa7400 [ 1076.402463] Call trace: [ 1076.404901] __memcpy+0x84/0x180 [ 1076.408125] acpi_data_show+0x54/0x80 [ 1076.411785] sysfs_kf_bin_read+0x6c/0xa8 [ 1076.415696] kernfs_fop_read+0xa4/0x1e0 [ 1076.419520] __vfs_read+0x48/0x90 [ 1076.422823] vfs_read+0x94/0x150 [ 1076.426038] SyS_read+0x74/0xf0 [ 1076.429171] el0_svc_naked+0x30/0x34 [ 1076.432736] Code: a88120c7 a8c12027 a88120c7 36180062 (f8408423) [ 1076.438818] ---[ end trace 496ae41e9716bef3 ]--- To manage notifications about this bug go to: https://bugs.launchpad.net/stress-ng/+bug/1866772/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
