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@eswierk
eswierk / linux-3.14.51-i_wb_list-corruption-1.txt
Created April 21, 2016 18:38
Kernel 3.14.51 log showing i_wb_list corruption and possible race (1)
[1406104.150779] BUG: soft lockup - CPU#0 stuck for 22s! [kworker/u8:2:1989]
[1406104.150892] Modules linked in: xt_physdev(F) xen_netback(F) xen_blkback(F) ip_gre(F) ip_tunnel(F) ixgbevf(F) dm_crypt(F) algif_skcipher(F) af_alg(F) openvswitch(F) vxlan(F) gre(F) libcrc32c(F) xen_pciback(F) nfsd(F) auth_rpcgss(F) nfs_acl(F) nfs(F) lockd(F) fscache(F) sunrpc(F) xt_LOG(F) xt_limit(F) xt_tcpudp(F) nf_conntrack_ipv4(F) nf_defrag_ipv4(F) xt_conntrack(F) nf_conntrack(F) iptable_filter(F) ip_tables(F) x_tables(F) iTCO_wdt(F) iTCO_vendor_support(F) gpio_ich(F) raid1(F) x86_pkg_temp_thermal(F) intel_powerclamp(F) coretemp(F) crc32_pclmul(F) ghash_clmulni_intel(F) aesni_intel(F) aes_x86_64(F) lrw(F) gf128mul(F) glue_helper(F) ablk_helper(F) cryptd(F) sb_edac(F) mei_me(F) mei(F) lpc_ich(F) mfd_core(F) i2c_i801(F) ioatdma(F) squashfs(F) ixgbe(F) mdio(F) ptp(F) pps_core(F) dca(F) ahci(F) libahci(F) tpm_tis(F)
[1406104.151735] irq event stamp: 188840
[1406104.151781] hardirqs last enabled at (188839): [<ffffffff81680dad>] f
@eswierk
eswierk / sha1perf.go
Created March 11, 2016 16:53
golang compiler optimization test
package main
import (
"encoding/binary"
"fmt"
"hash"
"time"
"unsafe"
)