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X-OriginatorOrg: siemens.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Jul 2022 05:22:24.7090 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 7bf45842-12eb-4ff6-2689-08da648fab91 X-MS-Exchange-CrossTenant-Id: 38ae3bcd-9579-4fd4-adda-b42e1495d55a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=38ae3bcd-9579-4fd4-adda-b42e1495d55a;Ip=[194.138.21.70];Helo=[hybrid.siemens.com] X-MS-Exchange-CrossTenant-AuthSource: HE1EUR01FT022.eop-EUR01.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS8PR10MB6293 X-TUID: 4Sd9zO33wcOX On 12.07.22 16:20, Henning Schild wrote: > In order to find what might be going wrong you could enable ccache > logging. setting "log_file = /tmp/ccache.log" in ccache.conf (in the > caches main directory) > > Double check it is actually used, i think it would need CCACHE_DIR in > env and some compiler wrappers prefixed in PATH, plus write permissions > on the files. > > You can watch the thing from anywhere where it is mounted > > CCACHE_DIR=/path/to/cache watch ccache > > If you see missing going up but not hits ... it is probably used but > for some reason does not like what it found. Felix once pointed out > that for the kernel that could be if you have debug flags enabled, > where the absolute path of the sources will always end up in the > binaries. Or it could simply be that with sbuild the location of the > sources changes too dramatic ... in which case "hash_dir = false" could > help in the ccache.conf > Good hint regarding CONFIG_DEBUG_INFO: It's off for x86 defconfig while it's on for arm64's defconfig. Jan > Henning > > Am Sun, 10 Jul 2022 22:51:14 +0200 > schrieb Jan Kiszka : > >> Hi all, >> >> I've noticed that ccache is not doing its job with current next when >> cross-building, e.g. mc:qemuarm64-bullseye:linux-mainline. It does >> work as expected for native builds >> (mc:qemuamd64-bullseye:linux-mainline), and it works fine with v0.9. >> Seems like an sbuild regression. >> >> Jan >> > -- Siemens AG, Technology Competence Center Embedded Linux