[Touch-packages] [Bug 2004039] Re: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes
This bug was fixed in the package libunwind - 1.6.2-0ubuntu1.1 --- libunwind (1.6.2-0ubuntu1.1) kinetic; urgency=medium * Backport debian bug fix for dynamic page size (LP: #2004039) - Add upstream change to determine the page size dynamically, thanks to Thomas Glanzmann. (Closes: #1026217) -- Tobias Heider Mon, 30 Jan 2023 11:30:11 +0100 ** Changed in: libunwind (Ubuntu Kinetic) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libunwind in Ubuntu. https://bugs.launchpad.net/bugs/2004039 Title: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes Status in libunwind package in Ubuntu: Fix Released Status in libunwind source package in Kinetic: Fix Released Bug description: [ Impact ] * On kernels with page size > 4K Xorg (and presumably other applications relying on libunwind) crashes on startup. This affects anyone running the official arm64 generic-64k kernel or custom non 4k kernels (as used by e.g. apple silicon). The exact error I am seeing in the logs is: Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x188) [0xaaab456ca998] Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) unw_get_proc_info failed: no unwind info found [-10] Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Segmentation fault at address 0x0 Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: Fatal server error: Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Caught signal 11 (Segmentation fault). Server aborting Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: Please consult the The X.Org Foundation support Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: at http://wiki.x.org Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: for help. Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) I have not found a workaround other than using wayland (which has other limitations). To reproduce use a kernel configured with a page size of 16K (CONFIG_ARM64_16K_PAGES=y or CONFIG_ARM64_64K_PAGES=y or) and try to start "Ubuntu on Xorg" in gdm. [ Test Plan ] * Make sure Xorg doesn't crash on 4K, 16K and 64K kernels. [ Where problems could occur ] * We will have to make sure the fixed version still works with 4k kernels. The patch is already widely in use so the risk seems low if we test properly. [ Other Info ] * The lunar version ships the bug fix synced from debian * Debian bug: https://bugs.debian.org/cgi- bin/bugreport.cgi?bug=1026217 * Upstream fix: https://github.com/libunwind/libunwind/commit/e85b65cec757ef589f28957d0c6c21c498a03bdf To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libunwind/+bug/2004039/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 2004039] Re: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes
The detected regression looks like a false-positive caused by another dependency. The reported error is `/bin/sh: 1: python: not found` which does not seem to be caused by the changes in libunwind. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libunwind in Ubuntu. https://bugs.launchpad.net/bugs/2004039 Title: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes Status in libunwind package in Ubuntu: Fix Released Status in libunwind source package in Kinetic: Fix Committed Bug description: [ Impact ] * On kernels with page size > 4K Xorg (and presumably other applications relying on libunwind) crashes on startup. This affects anyone running the official arm64 generic-64k kernel or custom non 4k kernels (as used by e.g. apple silicon). The exact error I am seeing in the logs is: Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x188) [0xaaab456ca998] Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) unw_get_proc_info failed: no unwind info found [-10] Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Segmentation fault at address 0x0 Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: Fatal server error: Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Caught signal 11 (Segmentation fault). Server aborting Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: Please consult the The X.Org Foundation support Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: at http://wiki.x.org Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: for help. Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) I have not found a workaround other than using wayland (which has other limitations). To reproduce use a kernel configured with a page size of 16K (CONFIG_ARM64_16K_PAGES=y or CONFIG_ARM64_64K_PAGES=y or) and try to start "Ubuntu on Xorg" in gdm. [ Test Plan ] * Make sure Xorg doesn't crash on 4K, 16K and 64K kernels. [ Where problems could occur ] * We will have to make sure the fixed version still works with 4k kernels. The patch is already widely in use so the risk seems low if we test properly. [ Other Info ] * The lunar version ships the bug fix synced from debian * Debian bug: https://bugs.debian.org/cgi- bin/bugreport.cgi?bug=1026217 * Upstream fix: https://github.com/libunwind/libunwind/commit/e85b65cec757ef589f28957d0c6c21c498a03bdf To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libunwind/+bug/2004039/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 2004039] Re: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes
I have installed libunwind=1.6.2-0ubuntu1.1 on my 16K page arm machine and verified that the xorg crash is indeed fixed with this version. To make sure it also does not negatively affect other hardware configurations I also tested on my amd64 desktop and found that everything still works without regressions after the update. To test the functionality of the library I installed libunwind-dev=1.6.2-0ubuntu1.1 and ran the libunwind examples from https://github.com/daniel-thompson/libunwind-examples The results look good: $USER:~/libunwind-examples$ ./unwind-local 0x55d35d0d644c: (cmp+0xe) 0x7f927ac3d33c: (bsearch+0x5c) 0x55d35d0d61fc: (main+0x5c) 0x7f927ac23510: (__libc_init_first+0x90) 0x7f927ac235c9: (__libc_start_main+0x89) 0x55d35d0d6245: (_start+0x25) ** Tags removed: verification-needed-kinetic ** Tags added: verification-done-kinetic -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libunwind in Ubuntu. https://bugs.launchpad.net/bugs/2004039 Title: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes Status in libunwind package in Ubuntu: Fix Released Status in libunwind source package in Kinetic: Fix Committed Bug description: [ Impact ] * On kernels with page size > 4K Xorg (and presumably other applications relying on libunwind) crashes on startup. This affects anyone running the official arm64 generic-64k kernel or custom non 4k kernels (as used by e.g. apple silicon). The exact error I am seeing in the logs is: Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x188) [0xaaab456ca998] Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) unw_get_proc_info failed: no unwind info found [-10] Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Segmentation fault at address 0x0 Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: Fatal server error: Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Caught signal 11 (Segmentation fault). Server aborting Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: Please consult the The X.Org Foundation support Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: at http://wiki.x.org Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: for help. Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) I have not found a workaround other than using wayland (which has other limitations). To reproduce use a kernel configured with a page size of 16K (CONFIG_ARM64_16K_PAGES=y or CONFIG_ARM64_64K_PAGES=y or) and try to start "Ubuntu on Xorg" in gdm. [ Test Plan ] * Make sure Xorg doesn't crash on 4K, 16K and 64K kernels. [ Where problems could occur ] * We will have to make sure the fixed version still works with 4k kernels. The patch is already widely in use so the risk seems low if we test properly. [ Other Info ] * The lunar version ships the bug fix synced from debian * Debian bug: https://bugs.debian.org/cgi- bin/bugreport.cgi?bug=1026217 * Upstream fix: https://github.com/libunwind/libunwind/commit/e85b65cec757ef589f28957d0c6c21c498a03bdf To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libunwind/+bug/2004039/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 2004039] Re: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes
Hello Tobias, or anyone else affected, Accepted libunwind into kinetic-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/libunwind/1.6.2-0ubuntu1.1 in a few hours, and then in the -proposed repository. Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users. If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed- kinetic to verification-done-kinetic. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-kinetic. In either case, without details of your testing we will not be able to proceed. Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping! N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days. ** Changed in: libunwind (Ubuntu) Status: New => Fix Released ** Changed in: libunwind (Ubuntu Kinetic) Status: New => Fix Committed ** Tags added: verification-needed verification-needed-kinetic -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libunwind in Ubuntu. https://bugs.launchpad.net/bugs/2004039 Title: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes Status in libunwind package in Ubuntu: Fix Released Status in libunwind source package in Kinetic: Fix Committed Bug description: [ Impact ] * On kernels with page size > 4K Xorg (and presumably other applications relying on libunwind) crashes on startup. This affects anyone running the official arm64 generic-64k kernel or custom non 4k kernels (as used by e.g. apple silicon). The exact error I am seeing in the logs is: Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x188) [0xaaab456ca998] Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) unw_get_proc_info failed: no unwind info found [-10] Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Segmentation fault at address 0x0 Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: Fatal server error: Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Caught signal 11 (Segmentation fault). Server aborting Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: Please consult the The X.Org Foundation support Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: at http://wiki.x.org Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: for help. Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) I have not found a workaround other than using wayland (which has other limitations). To reproduce use a kernel configured with a page size of 16K (CONFIG_ARM64_16K_PAGES=y or CONFIG_ARM64_64K_PAGES=y or) and try to start "Ubuntu on Xorg" in gdm. [ Test Plan ] * Make sure Xorg doesn't crash on 4K, 16K and 64K kernels. [ Where problems could occur ] * We will have to make sure the fixed version still works with 4k kernels. The patch is already widely in use so the risk seems low if we test properly. [ Other Info ] * The lunar version ships the bug fix synced from debian * Debian bug: https://bugs.debian.org/cgi- bin/bugreport.cgi?bug=1026217 * Upstream fix: https://github.com/libunwind/libunwind/commit/e85b65cec757ef589f28957d0c6c21c498a03bdf To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libunwind/+bug/2004039/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 2004039] Re: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes
LGTM, sponsored, thank you! -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libunwind in Ubuntu. https://bugs.launchpad.net/bugs/2004039 Title: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes Status in libunwind package in Ubuntu: New Status in libunwind source package in Kinetic: New Bug description: [ Impact ] * On kernels with page size > 4K Xorg (and presumably other applications relying on libunwind) crashes on startup. This affects anyone running the official arm64 generic-64k kernel or custom non 4k kernels (as used by e.g. apple silicon). The exact error I am seeing in the logs is: Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x188) [0xaaab456ca998] Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) unw_get_proc_info failed: no unwind info found [-10] Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Segmentation fault at address 0x0 Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: Fatal server error: Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Caught signal 11 (Segmentation fault). Server aborting Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: Please consult the The X.Org Foundation support Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: at http://wiki.x.org Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: for help. Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) I have not found a workaround other than using wayland (which has other limitations). To reproduce use a kernel configured with a page size of 16K (CONFIG_ARM64_16K_PAGES=y or CONFIG_ARM64_64K_PAGES=y or) and try to start "Ubuntu on Xorg" in gdm. [ Test Plan ] * Make sure Xorg doesn't crash on 4K, 16K and 64K kernels. [ Where problems could occur ] * We will have to make sure the fixed version still works with 4k kernels. The patch is already widely in use so the risk seems low if we test properly. [ Other Info ] * The lunar version ships the bug fix synced from debian * Debian bug: https://bugs.debian.org/cgi- bin/bugreport.cgi?bug=1026217 * Upstream fix: https://github.com/libunwind/libunwind/commit/e85b65cec757ef589f28957d0c6c21c498a03bdf To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libunwind/+bug/2004039/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 2004039] Re: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes
New diff as requested by @tsimonq2. I changed the version to 1.6.2-0ubuntu1.1 and added a DEP-3 header instead of taking the unmodified patch from lunar as I did previously. ** Patch removed: "kinetic-fix" https://bugs.launchpad.net/ubuntu/kinetic/+source/libunwind/+bug/2004039/+attachment/5643674/+files/libunwind_1.6.2-0ubuntu2.debdiff ** Patch added: "libunwind_1.6.2-0ubuntu1.1.debdiff" https://bugs.launchpad.net/ubuntu/kinetic/+source/libunwind/+bug/2004039/+attachment/5643965/+files/libunwind_1.6.2-0ubuntu1.1.debdiff -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libunwind in Ubuntu. https://bugs.launchpad.net/bugs/2004039 Title: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes Status in libunwind package in Ubuntu: New Status in libunwind source package in Kinetic: New Bug description: [ Impact ] * On kernels with page size > 4K Xorg (and presumably other applications relying on libunwind) crashes on startup. This affects anyone running the official arm64 generic-64k kernel or custom non 4k kernels (as used by e.g. apple silicon). The exact error I am seeing in the logs is: Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x188) [0xaaab456ca998] Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) unw_get_proc_info failed: no unwind info found [-10] Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Segmentation fault at address 0x0 Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: Fatal server error: Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Caught signal 11 (Segmentation fault). Server aborting Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: Please consult the The X.Org Foundation support Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: at http://wiki.x.org Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: for help. Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) I have not found a workaround other than using wayland (which has other limitations). To reproduce use a kernel configured with a page size of 16K (CONFIG_ARM64_16K_PAGES=y or CONFIG_ARM64_64K_PAGES=y or) and try to start "Ubuntu on Xorg" in gdm. [ Test Plan ] * Make sure Xorg doesn't crash on 4K, 16K and 64K kernels. [ Where problems could occur ] * We will have to make sure the fixed version still works with 4k kernels. The patch is already widely in use so the risk seems low if we test properly. [ Other Info ] * The lunar version ships the bug fix synced from debian * Debian bug: https://bugs.debian.org/cgi- bin/bugreport.cgi?bug=1026217 * Upstream fix: https://github.com/libunwind/libunwind/commit/e85b65cec757ef589f28957d0c6c21c498a03bdf To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libunwind/+bug/2004039/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 2004039] Re: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes
** Description changed: [ Impact ] - * On kernels with page size > 4K xorg (and presumably other applications -relying on libunwind) crashes on startup. This affects anyone -running the official arm64 generic-64k kernel or custom non 4k kernels -(as used by e.g. apple silicon). + * On kernels with page size > 4K Xorg (and presumably other applications + relying on libunwind) crashes on startup. This affects anyone + running the official arm64 generic-64k kernel or custom non 4k kernels + (as used by e.g. apple silicon). + +The exact error I am seeing in the logs is: + + Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x188) [0xaaab456ca998] + Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) unw_get_proc_info failed: no unwind info found [-10] + Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) + Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Segmentation fault at address 0x0 + Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) + Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: Fatal server error: + Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Caught signal 11 (Segmentation fault). Server aborting + Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) + Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) + Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: Please consult the The X.Org Foundation support + Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: at http://wiki.x.org + Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: for help. + Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) + + I have not found a workaround other than using wayland (which has other + limitations). To reproduce use a kernel configured with a page size of + 16K (CONFIG_ARM64_16K_PAGES=y or CONFIG_ARM64_64K_PAGES=y or) and try + to start "Ubuntu on Xorg" in gdm. [ Test Plan ] - * Make sure Xorg works on a variety of different archs and kernels with -different page sizes. + * Make sure Xorg doesn't crash on 4K, 16K and 64K kernels. [ Where problems could occur ] - * We will have to make sure the fixed version still works with 4k -kernels. The patch is already widely in use so the risk seems low if -we test properly. + * We will have to make sure the fixed version still works with 4k + kernels. The patch is already widely in use so the risk seems low if + we test properly. [ Other Info ] - - * The lunar version ships the bug fix synced from debian - - * Debian bug: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1026217 - * Upstream fix: + * The lunar version ships the bug fix synced from debian + + * Debian bug: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1026217 + + * Upstream fix: https://github.com/libunwind/libunwind/commit/e85b65cec757ef589f28957d0c6c21c498a03bdf -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libunwind in Ubuntu. https://bugs.launchpad.net/bugs/2004039 Title: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes Status in libunwind package in Ubuntu: New Status in libunwind source package in Kinetic: New Bug description: [ Impact ] * On kernels with page size > 4K Xorg (and presumably other applications relying on libunwind) crashes on startup. This affects anyone running the official arm64 generic-64k kernel or custom non 4k kernels (as used by e.g. apple silicon). The exact error I am seeing in the logs is: Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x188) [0xaaab456ca998] Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) unw_get_proc_info failed: no unwind info found [-10] Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Segmentation fault at address 0x0 Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: Fatal server error: Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Caught signal 11 (Segmentation fault). Server aborting Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: Please consult the The X.Org Foundation support Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: at http://wiki.x.org Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: for help. Jan 30 11:16:20 ubuntu /usr/libexec/gdm-x-session[3199]: (EE) I have not found a workaround other than using wayland (which has other limitations). To reproduce use a kernel configured with a page
[Touch-packages] [Bug 2004039] Re: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes
Hi Tobias, thanks for your interest in this bug! While I did not do a code review of the patch itself, I have some general feedback on the diff and the bug report itself that I hope you find helpful: - The version should be 1.6.2-0ubuntu1.1 instead of 1.6.2-0ubuntu2, following Stable Release Update guidelines. Generally speaking, 1.6.2-0ubuntu2 would only be appropriate for the development release. - As a sponsor, I prefer DEP-3 headers[1] over Git patch headers, so the patch stays machine-readable (and so bug references such as this one and the Debian bug can be inserted). - The bug report description should be more thorough; does Xorg hard-crash, or is there a workaround? Could you provide specific instructions to reproduce the failure, please? Same with verification steps. For now, I'm unsubscribing the sponsors team. Please resubscribe the team once most (or all) of these points have been addressed. Thank you! [1] https://dep-team.pages.debian.net/deps/dep3/ -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libunwind in Ubuntu. https://bugs.launchpad.net/bugs/2004039 Title: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes Status in libunwind package in Ubuntu: New Status in libunwind source package in Kinetic: New Bug description: [ Impact ] * On kernels with page size > 4K xorg (and presumably other applications relying on libunwind) crashes on startup. This affects anyone running the official arm64 generic-64k kernel or custom non 4k kernels (as used by e.g. apple silicon). [ Test Plan ] * Make sure Xorg works on a variety of different archs and kernels with different page sizes. [ Where problems could occur ] * We will have to make sure the fixed version still works with 4k kernels. The patch is already widely in use so the risk seems low if we test properly. [ Other Info ] * The lunar version ships the bug fix synced from debian * Debian bug: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1026217 * Upstream fix: https://github.com/libunwind/libunwind/commit/e85b65cec757ef589f28957d0c6c21c498a03bdf To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libunwind/+bug/2004039/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 2004039] Re: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes
** Description changed: - The libunwind version we ship in kinetic crahes on arm64 platforms with page sizes > 4k. - This was fixed in libunwind upstream. The fix made it into the debian version synced to lunar. + [ Impact ] - Debian bug report at https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1026217 - Upstream commit: https://github.com/libunwind/libunwind/commit/2d004eafc77f3c6a4bd9a44b1c35735273fd4e97 + * On kernels with page size > 4K xorg (and presumably other applications +relying on libunwind) crashes on startup. This affects anyone +running the official arm64 generic-64k kernel or custom non 4k kernels +(as used by e.g. apple silicon). + + [ Test Plan ] + + * Make sure Xorg works on a variety of different archs and kernels with +different page sizes. + + [ Where problems could occur ] + + * We will have to make sure the fixed version still works with 4k +kernels. The patch is already widely in use so the risk seems low if +we test properly. + + [ Other Info ] + + * The lunar version ships the bug fix synced from debian + + * Debian bug: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1026217 + + * Upstream fix: + https://github.com/libunwind/libunwind/commit/e85b65cec757ef589f28957d0c6c21c498a03bdf -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libunwind in Ubuntu. https://bugs.launchpad.net/bugs/2004039 Title: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes Status in libunwind package in Ubuntu: New Status in libunwind source package in Kinetic: New Bug description: [ Impact ] * On kernels with page size > 4K xorg (and presumably other applications relying on libunwind) crashes on startup. This affects anyone running the official arm64 generic-64k kernel or custom non 4k kernels (as used by e.g. apple silicon). [ Test Plan ] * Make sure Xorg works on a variety of different archs and kernels with different page sizes. [ Where problems could occur ] * We will have to make sure the fixed version still works with 4k kernels. The patch is already widely in use so the risk seems low if we test properly. [ Other Info ] * The lunar version ships the bug fix synced from debian * Debian bug: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1026217 * Upstream fix: https://github.com/libunwind/libunwind/commit/e85b65cec757ef589f28957d0c6c21c498a03bdf To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libunwind/+bug/2004039/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 2004039] Re: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes
Attached is a debdiff with the backported fix from lunar ** Patch added: "kinetic-fix" https://bugs.launchpad.net/ubuntu/+source/libunwind/+bug/2004039/+attachment/5643674/+files/libunwind_1.6.2-0ubuntu2.debdiff -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libunwind in Ubuntu. https://bugs.launchpad.net/bugs/2004039 Title: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes Status in libunwind package in Ubuntu: New Status in libunwind source package in Kinetic: New Bug description: The libunwind version we ship in kinetic crahes on arm64 platforms with page sizes > 4k. This was fixed in libunwind upstream. The fix made it into the debian version synced to lunar. Debian bug report at https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1026217 Upstream commit: https://github.com/libunwind/libunwind/commit/2d004eafc77f3c6a4bd9a44b1c35735273fd4e97 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libunwind/+bug/2004039/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 2004039] Re: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes
** Also affects: libunwind (Ubuntu Jammy) Importance: Undecided Status: New ** No longer affects: libunwind (Ubuntu Jammy) ** Also affects: libunwind (Ubuntu Kinetic) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libunwind in Ubuntu. https://bugs.launchpad.net/bugs/2004039 Title: libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes Status in libunwind package in Ubuntu: New Status in libunwind source package in Kinetic: New Bug description: The libunwind version we ship in kinetic crahes on arm64 platforms with page sizes > 4k. This was fixed in libunwind upstream. The fix made it into the debian version synced to lunar. Debian bug report at https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1026217 Upstream commit: https://github.com/libunwind/libunwind/commit/2d004eafc77f3c6a4bd9a44b1c35735273fd4e97 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libunwind/+bug/2004039/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
