#!/bin/bash # # Translate stack dump function offsets. # # addr2line doesn't work with KASLR addresses. This works similarly to # addr2line, but instead takes the 'func+0x123' format as input: # # $ ./scripts/faddr2line ~/k/vmlinux meminfo_proc_show+0x5/0x568 # meminfo_proc_show+0x5/0x568: # meminfo_proc_show at fs/proc/meminfo.c:27 # # If the address is part of an inlined function, the full inline call chain is # printed: # # $ ./scripts/faddr2line ~/k/vmlinux native_write_msr+0x6/0x27 # native_write_msr+0x6/0x27: # arch_static_branch at arch/x86/include/asm/msr.h:121 # (inlined by) static_key_false at include/linux/jump_label.h:125 # (inlined by) native_write_msr at arch/x86/include/asm/msr.h:125 # # The function size after the '/' in the input is optional, but recommended. # It's used to help disambiguate any duplicate symbol names, which can occur # rarely. If the size is omitted for a duplicate symbol then it's possible for # multiple code sites to be printed: # # $ ./scripts/faddr2line ~/k/vmlinux raw_ioctl+0x5 # raw_ioctl+0x5/0x20: # raw_ioctl at drivers/char/raw.c:122 # # raw_ioctl+0x5/0xb1: # raw_ioctl at net/ipv4/raw.c:876 # # Multiple addresses can be specified on a single command line: # # $ ./scripts/faddr2line ~/k/vmlinux type_show+0x10/45 free_reserved_area+0x90 # type_show+0x10/0x2d: # type_show at drivers/video/backlight/backlight.c:213 # # free_reserved_area+0x90/0x123: # free_reserved_area at mm/page_alloc.c:6429 (discriminator 2) set -o errexit set -o nounset command -v awk >/dev/null 2>&1 || die "awk isn't installed" command -v readelf >/dev/null 2>&1 || die "readelf isn't installed" command -v addr2line >/dev/null 2>&1 || die "addr2line isn't installed" usage() { echo "usage: faddr2line ..." >&2 exit 1 } warn() { echo "$1" >&2 } die() { echo "ERROR: $1" >&2 exit 1 } # Try to figure out the source directory prefix so we can remove it from the # addr2line output. HACK ALERT: This assumes that start_kernel() is in # kernel/init.c! This only works for vmlinux. Otherwise it falls back to # printing the absolute path. find_dir_prefix() { local objfile=$1 local start_kernel_addr=$(readelf -sW $objfile | awk '$8 == "start_kernel" {printf "0x%s", $2}') [[ -z $start_kernel_addr ]] && return local file_line=$(addr2line -e $objfile $start_kernel_addr) [[ -z $file_line ]] && return local prefix=${file_line%init/main.c:*} if [[ -z $prefix ]] || [[ $prefix = $file_line ]]; then return fi DIR_PREFIX=$prefix return 0 } __faddr2line() { local objfile=$1 local func_addr=$2 local dir_prefix=$3 local print_warnings=$4 local func=${func_addr%+*} local offset=${func_addr#*+} offset=${offset%/*} local size= [[ $func_addr =~ "/" ]] && size=${func_addr#*/} if [[ -z $func ]] || [[ -z $offset ]] || [[ $func = $func_addr ]]; then warn "bad func+offset $func_addr" DONE=1 return fi # Go through each of the object's symbols which match the func name. # In rare cases there might be duplicates. while read symbol; do local fields=($symbol) local sym_base=0x${fields[0]} local sym_type=${fields[1]} local sym_end=0x${fields[3]} # calculate the size local sym_size=$(($sym_end - $sym_base)) if [[ -z $sym_size ]] || [[ $sym_size -le 0 ]]; then warn "bad symbol size: base: $sym_base end: $sym_end" DONE=1 return fi sym_size=0x$(printf %x $sym_size) # calculate the address local addr=$(($sym_base + $offset)) if [[ -z $addr ]] || [[ $addr = 0 ]]; then warn "bad address: $sym_base + $offset" DONE=1 return fi addr=0x$(printf %x $addr) # weed out non-function symbols if [[ $sym_type != t ]] && [[ $sym_type != T ]]; then [[ $print_warnings = 1 ]] && echo "skipping $func address at $addr due to non-function symbol of type '$sym_type'" continue fi # if the user provided a size, make sure it matches the symbol's size if [[ -n $size ]] && [[ $size -ne $sym_size ]]; then [[ $print_warnings = 1 ]] && echo "skipping $func address at $addr due to size mismatch ($size != $sym_size)" continue; fi # make sure the provided offset is within the symbol's range if [[ $offset -gt $sym_size ]]; then [[ $print_warnings = 1 ]] && echo "skipping $func address at $addr due to size mismatch ($offset > $sym_size)" continue fi # separate multiple entries with a blank line [[ $FIRST = 0 ]] && echo FIRST=0 # pass real address to addr2line echo "$func+$offset/$sym_size:" addr2line -fpie $objfile $addr | sed "s; $dir_prefix\(\./\)*; ;" DONE=1 done < <(nm -n $objfile | awk -v fn=$func '$3 == fn { found=1; line=$0; start=$1; next } found == 1 { found=0; print line, $1 }') } [[ $# -lt 2 ]] && usage objfile=$1 [[ ! -f $objfile ]] && die "can't find objfile $objfile" shift DIR_PREFIX=supercalifragilisticexpialidocious find_dir_prefix $objfile FIRST=1 while [[ $# -gt 0 ]]; do func_addr=$1 shift # print any matches found DONE=0 __faddr2line $objfile $func_addr $DIR_PREFIX 0 # if no match was found, print warnings if [[ $DONE = 0 ]]; then __faddr2line $objfile $func_addr $DIR_PREFIX 1 warn "no match for $func_addr" fi done drivers/usb/dwc2/debug.h?id=cd44691f7177b2c1e1509d1a17d9b198ebaa34eb'>patch) treeaf696f53d3cdbe9011cdb9168b73e1b524411ecf /drivers/usb/dwc2/debug.h parent79c9089f97d37ffac88c3ddb6d359b2cf75058b7 (diff)parent161e6d44a5e2d3f85365cb717d60e363171b39e6 (diff)
Merge tag 'mmc-v4.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fix from Ulf Hansson: "MMC host: sdhci: Avoid hang when receiving spurious CARD_INT interrupts" * tag 'mmc-v4.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: sdhci: Ignore unexpected CARD_INT interrupts
Diffstat (limited to 'drivers/usb/dwc2/debug.h')
+0x3cb/0x4f0 [i915] drm_atomic_commit+0x4b/0x50 [drm] restore_fbdev_mode+0x14c/0x2a0 [drm_kms_helper] drm_fb_helper_restore_fbdev_mode_unlocked+0x34/0x80 [drm_kms_helper] drm_fb_helper_set_par+0x2d/0x60 [drm_kms_helper] intel_fbdev_set_par+0x18/0x70 [i915] fb_set_var+0x236/0x460 fbcon_blank+0x30f/0x350 do_unblank_screen+0xd2/0x1a0 vt_ioctl+0x507/0x12a0 tty_ioctl+0x355/0xc30 do_vfs_ioctl+0xa3/0x5e0 SyS_ioctl+0x79/0x90 entry_SYSCALL_64_fastpath+0x13/0x94 - i915 unpin_work workqueue: intel_unpin_work_fn+0x58/0x140 [i915] process_one_work+0x1f1/0x480 worker_thread+0x48/0x4d0 kthread+0x101/0x140 and this patch purely papers over the issue by adding a NULL pointer check and a WARN_ON_ONCE() to avoid the oops that would then generally make the machine unresponsive. Other callers of i915_gem_object_to_ggtt() seem to also check for the returned pointer being NULL and warn about it, so this clearly has happened before in other places. [ Reported it originally to the i915 developers on Jan 8, applying the ugly workaround on my own now after triggering the problem for the second time with no feedback. This is likely to be the same bug reported as https://bugs.freedesktop.org/show_bug.cgi?id=98829 https://bugs.freedesktop.org/show_bug.cgi?id=99134 which has a patch for the underlying problem, but it hasn't gotten to me, so I'm applying the workaround. ] Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Imre Deak <imre.deak@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/dt-bindings/reset/tegra186-reset.h')